Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

How many triangles can you count in the figure given?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Spot what is wrong here in below Picture?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

Count the squares in the matchstick puzzle below?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Replace the question mark in the picture below.

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?