Simple riddles

A blind man walks into a hardware store to buy a hammer. There are hammers hanging behind the front desk, but obviously the blind man isn't able to see them. And yet a few minutes later, he happily walks out of the store, having just purchased a new hammer. How did he do it?

What is brown and sticky?

They are twin sisters, same height; they work in the kitchen, arm in arm. Whatever is cooked, they always try it first.

Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not.

I am a word. If you pronounce me rightly, it will be wrong. If you pronounce me wrong it is right. What word am I?

Name the only sport in which the ball is always in possession of the team on defense, and the offensive team can score without touching the ball?

Romeo and Juliet are found dead on the floor in a bedroom. When they were discovered, there were pieces of glass and some water on the floor. The only furniture in the room is a shelf and a bed. The house is in a remote location, away from everything except for the nearby railroad track. What caused the death of Romeo and Juliet?

It always stays hot even when put in refrigerator! What is that?

What needs an answer but doesn’t ask a question?

If you were swimming in the ocean and a big alligator attacked you, what should you do?