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

What word begins and ends with an E, but has only one letter?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

What is the fastest way to double your money?

What does this Rebus Picture means ?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?