What kind of stones are never found in the ocean?

Dry stones.
Take off my skin, I won’t cry, but you will. What am I?An onion 

What question can you never answer “yes” to?“Are you asleep?”

 
What is the longest word in the English language?

“Smiles”. Because there is a mile between its first and last letters!

 Have 12 legs, 12 arms and 8 heads. What am I?A liar!