How is the moon similar to a dollar?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

It is always ahead of me yet I can never see it. What is it?

What is the centre of gravity?

In the picture given below, can you find out which digit will take place of the question mark?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

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?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?