Best riddles

How do you prevent a summer cold?

What emotion is an anagram of a homonym of an antonym of a homonym of an anagram of wolf?

Can you write number 45 using only the number 4?

What do you call a zipper on a banana?

It is a city that has no people! What is that?

A man came to visit at a convent while the superior mother was out of town. He left before she returned, and was careful to leave nothing behind. The nuns said nothing about his visit, so how did the superior mother figure out that a man had been there?

A man builds a house rectangular in shape. All sides have southern exposure. A big bear walks by, what color is the bear? Why?

On the first day of the school a young girl was found murdered. Police suspect four male teachers and question them. They were asked what they were doing at 8:00 am. Mr. Walter: I was driving to school and I was late. Mr. Thomas: I was checking English exam papers. Mr. Benjamin: I was reading the newspaper. Mr. Calvin: I was with my wife in my office. The police arrested the killer. How did the police find the murderer?

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?

Where do fish deposit their money?