Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

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

What is the below Rebus indicate?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

How can you tell a raw egg from a hard-boiled egg?

How is a fly different from a mosquito?

Outside a tattoo artist's shop, there was a signboard which read 'I make tattoos on only them who do not tattoo themselves'.

Reading it what do you think, does the tattoo artist tattoo himself?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.