During which month do people sleep the least?

What is the end of everything?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

What breaks yet never falls, and what falls yet never breaks?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

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 runs at maximum can a batsman score in a normal one-day match? Consider the fact that the conditions are ideal and there are no No Balls, no Wide Balls and no Extras in that match.

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?