Squigly Squigly's Brain Teasers

Question:

Mr. and Mrs. Smith have seven daughters. If each daughter has a brother how many children do Mr. and Mrs. Smith have?

Answer:

They have eight children.

Try another Brain Teaser:

What moves forwards and backwards but has no legs, it cannot talk, it cannot walk, it doesn't slither or crawl across the floor either. It comes in different shapes, sizes and colours. What is it?