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?

Replace the question mark with the correct number in below Picture:

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

What is the centre of gravity?

What is wrong in the below Picture?

Which tank will fill first?

What is always in front of you but can’t be seen?

What do you think with the below Picture ?

What has a bottom at the top?