A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?

Why do you find that most of the buildings are deprived of the 13th floor?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

I am the fastest animal but cannot climb the tree. What am I?

Who can jump higher than a Mountain?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?