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Water in the Cup (Posted on 2023-01-04) Difficulty: 3 of 5
Ryan was a wealthy customer in a restaurant. Sitting in his table he asked a waiter for a juice glass, a dinner plate, water, a match, and a lemon wedge. The man poured enough onto the plate to cover it.

"If you can get the water on the plate into this glass without touching or moving this plate, I will give you $100," Ryan said, "You can use the match and the lemon to do this."

A few minutes later, the waiter walked away with $100 in his pocket.

How did the waiter get the water into the glass?

See The Solution Submitted by K Sengupta    
Rating: 5.0000 (1 votes)

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Solution Solution | Comment 2 of 5 |
Stick the match into the lemon wedge so that you can use the lemon wedge as a base to hold the match upright (with the head sticking out). Now place the lemon wedge on the plate, ignite the match, and invert the glass and use it to cover the match/lemon.

As the match burns it will consume oxygen from the air trapped by the glass and water. This will generate a partial vacuum, causing the water to be sucked into the glass.

  Posted by H M on 2023-01-04 09:54:31
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