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

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

I add 5 to 9 and get 2. The answer is correct, so what am I?

Why Aeroplane windows are round?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

What is the Surname of Barbie Doll?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

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?