Put the calculator down. You don't need it.
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A rooster lays 3 eggs a day for 3 weeks. How many eggs do you have?
Most people immediately start multiplying. 3 eggs times 7 days times 3 weeks. They get 63 and feel pretty good about themselves.
Solution:
The answer is zero.
Roosters don't lay eggs. Ever. That's a hen's job. The question told you a rooster was laying eggs and most people just accepted it without blinking because the math felt like the real challenge.
The trick wasn't the num