Can you place three balls such that the equation shown in the picture holds true?

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?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

I have feet, but no legs. Which animal Am I?

Which wheel of car does not rotate when you turn your car right?

What can you hold in your right hand, but never in your left hand?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?