Riddles
100

What is full of holes but still holds water?

What is a sponge?

200

A man who was outside in the rain without an umbrella or hat didn't get a single hair on his head wet. Why?

He was bald

300

A word that has six letters, but if you subtract one, twelve remains.

A dozen

400

What has many keys but cannot open any doors?

What is a Piano?

500

Where does today come before yesterday?

What is a Dictionary?