John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

What has a ring but no finger?

When we see 2 but call 10?

What does this rebus means ?

PROG WORKRESS

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

There is something which is always coming but never arrives?

John is on an island and there are three crates of fruit that have washed up in front of him. One crate contains only apples. One crate contains only oranges. The other crate contains both apples and oranges.

Each crate is labelled. One reads 'apples', one reads 'oranges', and one reads 'apples and oranges'. He know that NONE of the crates have been labeled correctly - they are all wrong.

If he can only take out and look at just one of the pieces of fruit from just one of the crates, how can he label all of the crates correctly?