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?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

What is the longest word in the dictionary?

Take away the whole and some still remain. What is it?

What number do you get when you multiply all of the numbers on a telephone's number pad?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?