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| 1. |
EASY
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I am a prime number. I am a factor of both 12 and 10. What number am I?
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| 2. |
MEDIUM
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I am a 2-digit number. The sum of my digits equal 16. My first digit is greater than my second digit. What number am I?
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| 3. |
MEDIUM
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I am less than the first 2-digit prime number, but greater than the first odd composite number. What number am I?
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| 4. |
HARD
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I am a 3 digit number. If you write me backwards, I am still a 3 digit number. If you add me and my backwards number, you will get 666. What is my middle digit?
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| 5. |
HARD
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I am the product of 4 consecutive prime numbers, and my last digit is 0. What is the sum of these 4 prime numbers?
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