How many sides does a circle have?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

The dirtier I get, the whiter I look. Who am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

If eleven plus two equals one, what does nine plus five equal?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?