Can you find out which options fits best with the missing column?

Can you move 2 matchsticks to form four equal sized squares.

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 see me once in June, twice in November, and not at all in May. What am I?

John, Jack and Jill are in a desert. John doesn't like Jill and hence decides to murder him. He poisons the water supply of Jill. Since it is a desert area, Jill must drink or he will die of thirst.

Jack does not know of the actions of John and also decides to murder Jill. To succeed in his ill motives, he removes the water supply of Jill so he dies of thirst.

Jill dies due to thirst. Who murdered Jill?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

Do You See It?

What is the difference between a jeweller and a jailer?

I am an odd number. Take away a letter and I become even. What number am I?

How is the moon similar to a dollar?