15 Interesting Riddles/Jokes

Which is faster, hot or cold?

Forwards, I am heavy. Backwards, I am not. What am I?

What question can you never answer "yes" to?

What kind of dog never bites?

What wears a cap, but has no head?

What kind of table doesn't have legs?

What is the smallest room in the world?

What starts with "e", ends with "e", and only has one letter?

What has hands but no feet, a face but no eyes, and tells but doesn't speak?

How many months have 28 days?

What 5-letter word has six left when you take 2 letters away?

What 3 letters can frighten a thief away?

I have cities, but no houses, forests, but no trees, rivers, but no water. What am I?

What is that you ought to keep after you give it to someone else?

The more you take away, the bigger I become. What am I?