Best riddles

With thieves I consort, with the vilest, in short, I'm quite at ease in depravity; Yes all divines use me, And savants can't lose me, For I am the center of gravity.

As small as your thumb, I am light in the air. You may hear me before you see me, but trust that I'm there. What am I?

Four children and their pet dog were walking under a small umbrella. But none of them became wet. How?

What type of house weighs the least?

You are in a cold house in the winter. It is dark. You have one match. There is a candle and there is a wood burning stove. Which do you light first?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

The horse jumps over the king. Strangely there is absolutely no scratch on him. Can you explain, how is it possible?

A horse is tied to a fifteen-foot rope and there is a bale of hay 25 feet away from him. The horse however is still able to eat from the hay. How is this possible?

What do you get when you cross a potato with an elephant?

Without looking at a calendar, within a minute name a boys name using 5 consecutive first letters of 5 consecutive months.