100+ Brainteasers with answers for kids and adults

The Two Door Puzzle-Brain teaser

• Ask either guard, "Which door are you guarding?"
• Ask either guard, "If I were to ask the other guard which door leads to freedom, what would they say?"
• Ask either guard, "Which door leads to freedom?"
• Ask either guard, "Is the door you are guarding the one that leads to death?"

You are standing in front of two doors. One leads to freedom, and the other leads to death. Two guards are standing, one in front of each door. One always tells the truth, and the other always lies, but you don't know which one is which. You can ask only one question to one of the guards to figure out which door leads to freedom. What do you ask?

Ask either guard, "If I were to ask the other guard which door leads to freedom, what would they say?" Then, choose the opposite door.

Four cars and-Four Way- Brain Teasers

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?

Answer: They all made right-hand turns

Knock on door without hands- Brain Teasers

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

Answer: Opportunity

Seasons, Seconds, Centuries and Minutes- Brain Teasers

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

Answer: The letter N.

2 Mothers 2 Daughters and Burger-Brain Teasers

Two mothers and two daughters went out to eat. Everyone ate one burger, yet only three burgers were eaten in all. How is this possible?

Answer:-They were a grandmother, mother, and daughter.

Running means Walking- Brain Teasers

What kind of running means walking?

Answer: Running out of gas

The Unpredictable Elevator

An elevator is on the 10th floor. It goes down 7 floors, then up 4 floors, then down 6 floors, then up 3 floors, then down 5 floors. On which floor is the elevator now?

The elevator is on the 1st floor. (Start at 10, then move down 7 to 3, up 4 to 7, down 6 to 1, up 3 to 4, and down 5 to 1.)

Cities fields and moves- Brain Teasers

What goes through cities and fields, but never moves?

Answer: A road

Moneybox and Coins-Brain Teasers

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?

Answer: Just one, after which it will no longer be empty.

The Weight Puzzle-Brain teaser

You have 12 identical-looking balls, but one is of a different weight (heavier or lighter). You have a balance scale and can only use it three times. How do you find the odd ball?

1. Divide the balls into three groups of four.
2. Weigh two of the groups against each other:
   - If they balance, the odd ball is in the third group.
   - If they don? balance, the odd ball is in the heavier or lighter group.
3. Take the group with the odd ball and divide it into three. Repeat the weighing process.

The Water Jug Puzzle-Brain teaser

You have a 5-liter jug and a 3-liter jug. Neither has any markings on it. How can you measure exactly 4 liters using these jugs?

1. Fill the 5-liter jug to the top.
2. Pour water from the 5-liter jug into the 3-liter jug until it is full. This leaves you with 2 liters in the 5-liter jug.
3. Empty the 3-liter jug and pour the 2 liters from the 5-liter jug into the 3-liter jug.
4. Fill the 5-liter jug again and pour it into the 3-liter jug until it is full. Now you have exactly 4 liters left in the 5-liter jug.

The Twins Puzzle-Brain teaser

Two people born on the same day, from the same mother and father, but they are not twins. How is this possible?

They are part of a set of triplets (or more). They have other siblings born on the same day, which means they are not twins.

The Water and Wine Puzzle-brain teaserhaa

You have two glasses, one filled with water and the other filled with wine. You take a spoonful of water and pour it into the wine glass, then take a spoonful of the wine-water mixture and pour it back into the water glass. Is there more water in the wine or more wine in the water?

The amounts of water in the wine and wine in the water are the same. The process of mixing and exchanging liquids balances out the quantities.

Backyard-never-moves-Brain-Teasers

What runs all around a backyard, yet never moves?

Answer: A fence

28 days months-Brain Teasers

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

Answer: They all do.