Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Before Mount Everest was discovered, what was the highest mountain in the world?

Which is the rope you never skip with?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

What Adam and Eve do not have but the rest of the people have?

What do you call a fish without an eye?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.