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You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

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When you have me, you immediately feel like sharing me. But, if you do share me, you do not have me.

Jimmy’s mother had four children. She named the first Monday. She named the second Tuesday, and she named the third Wednesday. What is the name of the fourth child?

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You are a cyclist in a cross-country race. Just before crossing the finish line, you overtake the person in second place. In what place did you finish?

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What can you hold without ever touching or using your hands?

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