IQ Test Labs

Discover your intellectual strengths

puzzles & brain teasers

Riddles

1.What is full of holes but still holds water?

A sponge



2.What has no content yet you can see it?

A hole


3.What falls but never breaks?

Night


4.What is it that goes with an automobile and comes with it; is of no use to it, and yet the automobile cannot move without it?

Noise