100+ Brain teasers with answers for kids and adults

Four cars come to a four-way stop, all coming from a different direction. They can't decide who got there first, so they all go forward at the same time. They do not crash into each other, but all four cars go. How is this possible?

What has no hands but might knock on your door, and if it does you better open up?

You do not want to have it, But when you do have it, You do not want to lose it.-What is it?

Guess the next three letters in the series GTNTL.

A sundial has the fewest moving parts of any timepiece. Which has the most?

I have a large money box, 10 inches wide and 5 inches tall.-Roughly how many coins can I place until my money box is no longer empty?

Brothers and sisters I have none but this man's father is my father's son. Who is the man?

Who makes it, does not need for it. Who buys it, has no use for it. Those who use it can neither see nor feel it. What is it?

What runs all around a backyard, yet never moves?

What tastes better than it smells

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

A man was walking in the rain. He was in the middle of nowhere. He had nothing and nowhere to hide. He came home all wet, but not a single hair on his head was wet. Why is that?

How far can a rabbit run into the woods?

In a year, there are 12 months. Seven months have 31 days. How many months have 28 days?

What can be swallowed, but can also swallow you?