By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What does the below rebus puzzle mean?

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?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

Why blonde cannot dial 911?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

How can you drop a raw egg from a height onto a concrete floor without cracking it?