Crack the Math Code
Get ready to exercise your brain with a series of math riddles that require creative problem-solving and logical thinking.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
A snail is at the bottom of a 20-foot well. Each day, it climbs up 3 feet, but at night, it slips back 2 feet. How many days will it take for the snail to reach the top?
- 2
If Sally's father has 5 daughters named Nana, Nene, Nini, Nono, what is the name of the fifth daughter?
- 3
A bat and a ball together cost $1.10. The bat costs $1.00 more than the ball. How much does the ball cost?
- 4
You are in a room with three light switches. Each switch corresponds to one of three light bulbs in a room. Each bulb is off at the start. You can't see the bulbs from where you are, but you can turn the switches on and off as many times as you want. How can you figure out which switch controls which light bulb?
- 5
How many numbers between 1 and 100 are divisible by 3 or 5?
- 6
A woman has two coins that add up to 30 cents. One coin is not a nickel. What are the two coins?
- 7
What is the next number in the sequence: 1, 2, 4, 8, 16?
- 8
If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
- 9
A man is looking at a photograph of someone. His friend asks him, 'Who is in the picture?' The man replies, 'Brothers and sisters, I have none. But that man's father is my father's son.' Who is in the picture?
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