Showing posts with label Logic Puzzles. Show all posts
Showing posts with label Logic Puzzles. Show all posts

Sunday, July 04, 2021

Logic Puzzle: Where are they?

Ritu and Poorna started walking. They walked 2 kms to the east, then turned right and walked another 4 kms in a straight line. Then, they turned right again and walked another 2 kilometers. Then they turned left and walked another kilometer. 

How far are they from the starting point? In which direction from the starting point are they? 

Logic Puzzle: A long way from home

This morning, my friend and I started out from home and walked 2 kms towards the North. Then we turned left and walked another 3 kilometers. At this point, we started to get hungry and my friend said that perhaps we should start the 5 kms walk back. I laughed and said, "But home is only 4 kilometers away!" 

Who was right? Why? 

Logic Puzzle: The Reddy Children

The Reddy children are all grown up now, making it difficult to guess who is elder or younger to whom. 

At a recent family get together, this became quite the topic of discussion. An old, distantly related grandma offered to jog her memory and share whatever she could remember. Can you piece together the order (eldest - youngest) in which the Reddy children were born, with these statements? (The Reddy children themselves offer no help, no further guidance from anywhere is forthcoming) - ONLY these statements? 

A. Madan was named after Gopal, his immediate elder brother. 

B. Nisha is older than Supriya and Saurabh is elder to Pavan. 

C. Asha was the eldest, and Madan right in the middle. 

D. Supriya was born just a few years before Saurabh. 

Yes, these clues are enough. 

Saturday, July 03, 2021

Logic Puzzle: School Timetable

Mrs. Vijayan, the headmistress, is completely flummoxed. She can't find the timetable that she spent hours preparing just yesterday! Before it could get to the school record keeper for publication, the piece of paper was lost. 

Under the new school policy, school is a 4 day affair, and each day can have only 4 periods. The school teachers volunteer to help her re-create the timetable. Each of the subject teachers shares what she remembers: 

English: My subject is the only subject that was to be taught every single day, but no two days had English in the same period. 1st period one day, 2nd period another day, and so on. 

Maths: I also have 4 periods, but not one on each day. I had the last 2 periods every Monday, and nothing on Tuesday. The first period on Thursdays though. 

Hindi: I had 3 periods during the week - the first periods of Tuesday and Wednesday, and one period on Thursday. 

Science: I also had 3 periods during the week, but never a first period, and never the same period on any two days. On Wednesdays, it was the last period. 

Art: I only got 2 periods - the final period on Tuesdays and one on Thursdays. In fact, other than maths, no one had a double class on any day. 

English: My period is immediately after Maths on Wednesdays. 

Science: And my period is immediately before Maths on Mondays! 

Mrs. Vijayan: Oh, I remember now! Hindi was just before English on Thursdays! 

Can you piece the school schedule together from this? 


Logic Puzzle: 4 Friends (Ver 2)

Hello! My name is Asha and this puzzle is about me and my 3 friends. We are good friends, even though we are in different grades and go to different schools. We each like a different game, so we play favourite games by turns. Can you figure out who is in which class, which school, and likes which game? 

We are Asha, Bhargavi, Chinu, and Daksha. 

1. Bhargavi loves Uno and the girl in grade 9 likes Ludo. 

2. I am the youngest of them all, just in Grade 3, and I don't like chess, though the girl in Grade 4 likes it a lot. 

3. The girl in Grade 9 goes to RV School, while I go to BVM School. 

4. The children of LS School are given special training in chess. That's why our friend from that school loves chess best. 

5. Chinu does not go to LS School. 

6. The friend from SS school is in grade 7 and she is not the one who likes Scrabble. 

Logic Puzzle: 4 friends

We are 4 friends who live in the same colony, but our houses are painted different colours, so you can tell them apart. I am Puri, and this puzzle is about my friends, our homes, professions, and what our partners do. Their names are Rajan, Vijay, Suri, and Puri (that's me!) 

1. There are 2 artists in the group, and they are not married to each other. 

2. Rajan, the CA, lives in the red house. The teacher does not live in the red house. 

3. The green house belongs to the filmmaker but not to the photographer. 

4. I am an artist and my house is Yellow. 

5. Vijay is a doctor, while Suri is a photographer. 

6. The blue house does not have an artist, but it does have a teacher. 

7. The entrepreneur is my partner. 


Tuesday, August 18, 2020

Logic Puzzle based on phonetics


Ben, Gen, and Len,
Had a pretty pen
Which had 3 hen:
Rug, Lug, and Tug.
Pink, White, and Blue,
Can you tell who’s who(se)?

Rug is not white
Tug’s owner is bright.
Lug is Blue
L starts the owner’s name too.
Gen’s pet is pink.
It’s solved, don’t you think?

Note: In this puzzle, 3 kids – Ben, Gen, and Len, have a pet hen each. The hens are also of different colour. Can you figure out the colour and owner of each hen using this rhyme above?

Wednesday, August 05, 2020

Logic Puzzle: Playing this week?


Anvesha decides what they will play on Monday and Thursday, Bina on Tuesday and Friday, and Charu on Wednesday and Saturday.
Can you use the clues below to figure out what they play on each day of the week?
  1. Bina and Charu love basketball and want to play it often, but Anvesha will only play it once a week, so they have to comply.
  2. Mondays are for badminton and Fridays are for chess.
  3. Charu’s favourite sport is swimming. She makes her friends play it on one of her days.
  4. Saturdays are Scrabble days!
  5. Anvesha likes tennis.

Monday, February 12, 2018

Logic Puzzles, Riddles and other assorted stuff - II

The second instalment of logic puzzles and riddles that we created for the children's daily paper:


Certainty
In Country A, all the boys love painting and all the girls drink milk.
In Country B, all the boys drink tea and all the girls love painting.
Based on the above 2 statements, which of these can you be sure of:
A. In country A, none of the girls love painting.
B. In Country B, none of the boys drinks milk. ...
C. In Country A, all the girls love science.
D. In Country B, all the boys hate painting.



****************
Detective


Raman had a theft in his office. The witnesses were interviewed. The 4 people in office at the time were:
Raman: He runs the office.
Shambhu: He is an administrative assistant.
Rama is a manager.
Krishna is an associate. ...
Pratap is also an associate.

Here are the notes:
Pratap: Shambhu didn’t do it.
Rama: I was not in the office when this happened.
Shambhu: Neither Krishna nor Rama could have done it.
Krishna: Either Pratap did it or Shambhu did it.
After you have read the 4 statements, you go over and arrest the thief forthwith.
Who do you arrest, and why?


*************
In-code


In a certain code, 11 is written as 121 and 12 is written as 144. What are the following numbers written as in that code?
a. 6
b. 17
c. 15
d. 9...
e. 4

*****************

Logic Puzzles, Riddles and other assorted stuff

These are from the daily paper we make for our children.


Class-ifying
Your school allows students to choose from among 3 languages – German, Spanish and French. There are 75 children in the batch.
You want to know who is taking which language. These are your clues:
A. 40 children chose French but not German.
B. 10 children chose all 3 languages.
C. 20 children chose only Spanish and 10 children chose only German. ...
D. 40 children chose German and 65 children chose Spanish.
E. 15 children chose German and Spanish but not French.



*****************
Find the Odd One Out in each set:
1. Foxtrot, Tango, Jive, Katha
2. Yangtse, Danube, Amazon, Ganga, Meru
3. Paris, London, Lucknow, Brasilia
4. Caspian, Dead, Red, Brown...
5. Jatra, Nautanki, Chhau, Odissi



***********************
How Many Cakes?
On a given day, Savita sells between 10 and 20 cakes in her bakery.
For this week, however, she forgot to keep track of day wise sales. Here is what she does remember though:
Tuesday was twice as much as Monday, but half of that of Wednesday. ...
Thursday was when 18 cakes got sold, but Friday sold only half of that.
The number of cakes sold on Wednesday was a 2 digit number that was also a square.
Can you help Savita figure out how many cakes she sold on each day?

*****************
Ages Ago
5 friends challenge you to guess their ages. The sum of their ages is 45. The eldest is 4 years older than the youngest, and 3 of them are the same age. The age of the youngest is also the highest prime number under 10.
Now, can you guess the ages of the children?

*****************
Who was she talking to?
At a party, I found my friend speaking with a young lady. I asked her who it was that she was speaking with, and she said, “My mother’s younger sister has a brother. The brother has a wife. The wife has only one son. The son’s father has 2 sisters. The elder of the 2 sisters has only one daughter. This young girl is the first born of that daughter.”
****************
Aha!


A standard deck of playing cards has 52 cards of 4 suits.
While playing a certain game, we have to say “Aha” every time we get a card that is a multiple of 4.
How many “Aha”s will we hear before the game is over, if all the cards are played exactly once in the game? (Numeric Value of picture cards: J:11; Q:12; K:13)

Friday, March 18, 2016

More Logic Puzzes


All these puzzles are starters for the Logc Grid variety of puzzles.
 
Houses on the Street

Sapna, Ashish and Bharat live in the same lane. Their houses are of different colors, but attached to each other and in the same lane. What we do not know, is:

A. Who lives in which colored house.

B. Which house comes first, which next, and which last.

See if you can answer both questions after the clues below:

  1. The red house is next to the blue house but not next to the green house.
  2. Sapna and Ashish are not neighbors.
  3. Bharat loves going to the green house to the left of his house.
  4. Sapna and Bharat never visit each other's house.
  5. The right most house comes first in the lane.

 

 

Whodunnit?

There was a robbery at Jaibagh Haveli. And everyone is amazed. Because, the said robbery was actually a set of group thefts. You, the detective, have met all the witnesses. Three things were gone. And you know that each one was taken by a different person. The things that are missing are a quartz clock, a diamond brooch, and a marble statuette. The three persons identified are Raju, Sheel and Pavan.

 

Here are your notes after a series of interviews:

  1. Pavan took the clock.
  2. Sheel did not take the brooch.
  3. We are a happy family.

 

 

This is a Real Place!

Enid Blyton loved writing about so many lovely places. Here is a real place for you to figure out. Out here, there are the Fabulous Three instead of the Famous Five : Codenamed: Alpha, Beta and Cama. . Each one has a pet : parrot, cat or dog, and each one lives in a different lane of the village – Salzbury, Cadbury, or Tomberry Lane.

 

Here are your clues, as usual:

  1. Alpha lives in Salzbury Lane.
  2. The parrot is owned by someone whose name starts with a vowel.
  3. The resident of Cadbury Lane is a girl.
  4. The Tomberry Lane resident lives in a white house and has a cat for a pet.
  5. Cama lives in Cadbury Lane.

 

Free for Four

The Natural Ice Cream Company is running a promotion. If 4 friends come in together, each of them gets an ice cream cone free. Abhay, Bhavana, Chandra and David walk into the parlor, each wearing a different color of shirt. Expectedly, no two of them chose the same flavor of ice cream either. The colors are : Red, Green, Blue, Orange. The flavors are: Chocolate, Orange, Vanilla and Pistachio.

 

See if you can figure out the color of the shirt and the flavour of icecream from the clues below.

  1. Abhay wears a green shirt and his ice cream is green too.
  2. Chandra and David have a curious combination – the color of Chandra's shirt is the flavor of David's ice cream.
  3. The boy in the red shirt likes chocolate flavored ice creams.
  4. Chandra likes Vanilla ice cream.