100+ Brain teasers with answers for kids and adults !

What can you break, even if you never pick it up or touch it?

What is in seasons, seconds, centuries, and minutes but not in decades, years, or days?

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?

What do you throw out when you want to use it, but take in when you don't want to use it?

Guess the next three letters in the series GTNTL.

A monkey, a squirrel, and a bird are racing to the top of a coconut tree. Who will get the banana first: the monkey, the squirrel, or the bird?

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

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

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?

There is a word in the English language in which the first two letters signify a male, the first three letters signify a female, the first four signify a great man, and the whole word, is a great woman. What is the word?

In my hand I have two coins that are newly minted. Together, they total 30 cents. One isn't a nickel. What are the coins? 

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?