Exercises
Multiple Choice
Articles
Open Problems
Login
16 items
Tagged:
math puzzle
x
Start over
- to expand, or dig in by adding more tags and revising the query.
Sort By:
trending ▼
date
2
High School
By
Shiva Kintali
on June 24, 2012 | Updated Dec. 6, 2017
Toggling 100 doors
There are 100 doors numbered 1 to 100 in a row. There are 100 people. The first person opens all the doors. The second person closes all the even-numbered doors. The third person changes the state of…
Puzzles
Puzzles
interview question
math puzzle
0
High School
By
Shiva Kintali
on April 1, 2014 | Updated Dec. 6, 2017
Designing two dice
You are given two blank dice i.e., all the sides of the dice are blank. You are allowed to write any integers on the sides of the dice. Only one integer on each side. Write the integers such that …
Puzzles
Puzzles
interview question
math puzzle
0
High School
By
Shiva Kintali
on May 7, 2014 | Updated Jan. 4, 2018
Sock Drawer puzzle
There are 10 socks of each of the following colors in a drawer: red blue green black white i.e., there are 50 socks. The socks are arbitrarily distributed in the drawer. You are blind-f…
Puzzles
Puzzles
math puzzle
pigeonhole principle
0
High School
By
Shiva Kintali
on June 28, 2012 | Updated Dec. 6, 2017
Integral Rectangles
A large rectangle is partitioned into smaller rectangles, each of which has either integer height or integer width or both. Prove that the large rectangle also has this property.
Mathematics
Puzzles
Geometry
Puzzles
interview question
math puzzle
0
Undergraduate
By
Shiva Kintali
on June 10, 2012 | Updated Dec. 6, 2017
Stick triangle
A stick is broken at random into three pieces. What is the probability that the pieces can form a triangle?
Mathematics
Puzzles
Geometry
Probability
Puzzles
math puzzle
0
High School
By
Shiva Kintali
on June 2, 2013 | Updated Dec. 6, 2017
Die Hard Water Puzzle
You have a 3 litre jug and a 5 litre jug. Each jug has no markings on them. You have a running tap (i.e., infinite supply of water). You must use the jugs and the tap in such away as to exactly measur…
Puzzles
Puzzles
interview question
math puzzle
0
Undergraduate
By
Shiva Kintali
on Sept. 3, 2013 | Updated Jan. 4, 2018
Parliament Pacification
In a parliament, each member has at most three enemies. (We assume that enmity is always mutual). Is the following statement TRUE (or) FALSE ? One can always divide the parliament into two chambe…
Mathematics
Puzzles
Graph Theory
Puzzles
math puzzle
0
High School
By
Shiva Kintali
on Aug. 15, 2012 | Updated Dec. 6, 2017
Two Eggs Puzzle
You have two eggs, and access to a 100 story building. There is some floor on the building below which the eggs will not break, if dropped. What is the worst upper case bound on the number of drops …
Puzzles
Puzzles
math puzzle
0
High School
By
Shiva Kintali
on Aug. 1, 2012 | Updated Dec. 6, 2017
Two Secret Integers
I am thinking of two integers, each of them is more than 1 and their sum is less than 100. I tell my friend A the sum of these two numbers, and another friend B, product of these two numbers. Then the…
Puzzles
Puzzles
math puzzle
0
High School
By
Shiva Kintali
on June 13, 2012 | Updated Dec. 6, 2017
Secret salaries
Three coworkers (A,B,C) would like to know their average salary. How can they achieve this without revealing their own salaries ? More details : No single person can know the salary of other person…
Puzzles
Puzzles
math puzzle
1
2
next page »
icon
Sign In or Sign Up
icon
Invite Friends
Post Something
x
Select What You'd Like To Post
POST AN ARTICLE
POST AN OPEN PROBLEM
POST AN EXERCISE
POST A MULTIPLE-CHOICE QUESTION
Content Types
Articles
Open Problems
Exercises
Multiple-Choice Questions
Levels
High school
Undergraduate
Graduate
Subjects
Mathematics
Computer Science
Puzzles
Optimization
Trending tags
counting
pigeonhole principle
bipartite graph
matching
differentiation
integration
jee
jee 2016
jee advanced
jee mathematics
Topics
Algebra
Algorithms
Approximation Algorithms
Calculus
Combinatorial Optimization
Combinatorics
Complexity Theory
Data Structures
Discrete Mathematics
Game Theory
Geometry
Graph Theory
Linear Algebra
Linear Programming
Logic
Mathematical Analysis
Mathematics
Matrix Theory
Number Theory
Optimization
Probability
Programming
Puzzles
Randomized Algorithms
Real Analysis
Trigonometry
×