These brain teasers have been submitted by our visitors from all around the world. These quiz questions are fun for the brain and will puzzle you for some time.

We have lots more puzzles to provide fun for your brain. Have fun solving these quiz questions. Choose from the following brain games:

- How many feet are in a yard?
- True or False: When you add to odd numbers the sum is always odd?
- You are 9 years old and your dad is 47. How old will your dad be when you are 21?
- What are the next three numbers in this series: 14, 21, 28, 35,...
- What is the next number in this sequence: 2, 5, 9, 14,...
- A boy is 2 years old, his brother is half as old as him. When the first boy is 100, how old will his brother be?
- How do you write 23 using only the number 2?

34 using only the number 3?

56 using only the number 5?

100 using only the number 9? - Are Roman numerals given in small letters or capital letters?
- How do you write the number 5 in Roman numerals?
- A man weighing 14 stone and his two sons weighing 7 stone each were stranded on an island. All they had to get off the island was a small boat, but it could only hold 14 stone. How did the man and his sons get off the island?

- This riddle must be done IN YOUR HEAD and NOT using paper and pen or a calculator. Try it!

Take 1000 and add 40 to it. Now add another 1000 to it.

Now add 30. And another 1000.

Now add 20. Now add another 1000. Now add 10.

What is the total? - If you add 7 to this number, you get 56. What's the number?
- You have a 4 gallon and a 7 gallon jug of water. How can you measure exactly 6 gallons of water using these two jugs?
- Give the place value of 5 in the number 254,879.
- A boy and his big sister are sitting around the kitchen table chatting.

The boy says, "If I take two years away from my age and gave them to you, you'd be twice my age."

The sister added, "Why don't you just give me one more and then I'll be three times you age."

How old are the siblings? - How many sides does a decagon have?
- Which is measured from the circle's centre: the radius or the circumference?
- How many sides does a hexagon have?
- You have $10.60 in two bills and three coins. What bills and coins do you have?
- How many inches are in a foot?

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