WHAT IS FULL WHEN ITS USED AND EMPTY WHEN ITS AT REST RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Barty Crouch Jr Did you answer this riddle correctly?
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Mirror Did you answer this riddle correctly?
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One, then it isn't empty anymore! Did you answer this riddle correctly?
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He is short, so he can't reach the 100th floor button. On rainy days, he can use his umbrella to poke the button. Did you answer this riddle correctly?
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1, after that your stomach is not empty Did you answer this riddle correctly?
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How he died was he was in a submarine and they were at war with another country and their ship was hit there were four people in there. The bicycles are actually playing card brands and there were three oxygen tanks. the four men bet with cards to see who would get to take one oxygen tank. obviously the man who was dead lost and he was the one who died from lack of oxygen in the sub. Did you answer this riddle correctly?
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A Book: The Police can book you. You book at a restaurant. A book is portable. Did you answer this riddle correctly?
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A cake

Cake is baked,
Cake rests, to cool,
Cake comes in different shapes, sizes and types.
Cakes sometimes have candles above them on birthdays.

Cake is eaten,
Cake is sliced,
Cake is licked and poked and sometimes even squashed.
Wedding cakes have a man and woman on the top Did you answer this riddle correctly?
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Place 1 white marble in one bowl, and place the rest of the marbles in the other bowl (49 whites, and 50 blacks).

This way you begin with a 50/50 chance of choosing the bowl with just one white marble, therefore life! BUT even if you choose the other bowl, you still have ALMOST a 50/50 chance at picking one of the 49 white marbles. Did you answer this riddle correctly?
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There was a fire in the forest,the man was swimming, while he swimming a helicopter scooped down to pick up some water, it picked the man up with the water and then dropped him and the water in the burning forest. Did you answer this riddle correctly?
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He lives in Alaska and sunrise's are every six months. Did you answer this riddle correctly?
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The odds are 11:1. (The probability is 1/12.)

Imagine they sat down in age order, with each person randomly picking a seat. The first person is guaranteed to pick a seat that "works". The second oldest can sit to his right or left, since these five can sit either clockwise or counterclockwise. The probability of picking a seat that works is thus 2/4, or 1/2. The third oldest now has three chairs to choose from, one of which continues the progression in the order determined by the second person, for a probability of 1/3. This leaves two seats for the fourth oldest, or a 1/2 chance. The youngest would thus be guaranteed to sit in the right seat, since there is only one seat left. This gives 1 * 1/2 * 1/3 * 1/2 * 1 = 1/12, or 11:1 odds against. Did you answer this riddle correctly?
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5/9

The answer is NOT 2/3 because you cannot add probabilities. On each roll, the probability of getting a 2 or a 4 is 1/3, so therefore, the probability of not getting a 2 or a 4 is 2/3. Since the die is being rolled twice, square 2/3 to get a 4/9 probability of NOT getting a full house in two rolls. The probability of getting a full house is therefore 1 - 4/9, or 5/9. Did you answer this riddle correctly?
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A stable Did you answer this riddle correctly?
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A bottle of gin. Did you answer this riddle correctly?
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