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**Question: **Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a sports car; behind all of the others is bicycles. You pick a door, say No. 1, and the host, who knows what's behind the doors, opens another door, say No. 2, revealing a bicycle. He then says to you, "Do you want to pick door No. 3?" Is it to your advantage to switch your choice?

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**Question: **Mr. Smith has 4 daughters. Each of his daughters has a brother.

How many children does Mr. Smith have?

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**Question: **How can you add 8 8's to make 1000?

*3M views**3895 ratings**19 saves*

**Question: **When is 99 more than 100?