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:

- If you add 7 to this number, you get 56. What's the number?
- You are 9 years old and your dad is 47. How old will your dad be when you are 21?
- If a movie starts in an hour and a half, how many minutes do you have to wait to see it?
- What are the next two numbers in this series: 2, 9, 16, 23, ...
- Which of these numbers are prime numbers: 7, 8, 9, 10, 11, 12, 13, 14?
- A farmer has seventeen sheep. All but nine of them die. How many sheep does he have left?
- 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 many sides does a hexagon have?
- Give the place value of 5 in the number 254,879.
- How many metres are in a kilometre?

- How do you write the number 5 in Roman numerals?
- What are the next three numbers in this series: 14, 21, 28, 35,...
- 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?
- Are Roman numerals given in small letters or capital letters?
- How many tens equal one thousand?
- In division, the numeral the dividend is divided by is called...what?
- If 7 is transformed into 13 and 11 is changed to 21 then what does 16 become?
- What is the Roman numeral for 500?
- What are the next three numbers in this series: 4, 8, 12, 16,...?
- Add 9 + 1. Then mulitply 9 x 1. Do you get the same answer each time?

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