How many times can you subtract 5 from 25?
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Answer: ONCE
You can subtract 5 from 25 only once—because after you subtract it the first time, you’re no longer subtracting from 25, but from 20, then 15, and so on.
How much dirt is there in a hole that is 3 feet wide, 4 feet long, and 5 feet deep?
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Answer: There’s no dirt. It is a hole
A hole is an empty space, meaning it doesn’t contain any dirt—that’s what makes it a hole in the first place! Even though the dimensions (3 feet wide, 4 feet long, and 5 feet deep) might make it seem like you’re measuring a solid object, the question is actually playing with words. Since the dirt has already been removed to create the hole, there is no dirt inside it!
A doctor hands you three pills and instructs you to take one every 30 minutes. How much time will pass before you’ve taken all the pills?
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Answer: 1 hour
The key to this riddle is understanding when you start taking the pills. You take the first pill right away. Then, after 30 minutes, you take the second pill. Another 30 minutes later, you take the third and final pill. Since you take the first pill immediately, the total time before you’ve taken all three is 1 hour.
A police officer noticed a truck driver moving in the opposite direction on a one-way street but chose not to stop him. Why was that?
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Answer: The truck driver was walking
The trick in this question lies in the wording. It never says the truck driver was actually driving the truck—just that he was “going” the wrong way. If the truck driver was walking instead of driving, then he wasn’t breaking any traffic laws, which is why the police officer didn’t stop him.
What three numbers give the same result when multiplied and added together?
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The three numbers are 1, 2, and 3.
Explanation:
When you multiply them: 1×2×3=6
When you add them: 1+2+3=6
Since both results are the same, the answer is 1, 2, and 3.