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Replace the question mark with the number below given a simple math problem.

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Similar Riddles

Find the hidden panda in the image below.

Find The Panda

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If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

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Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

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In the Thar desert, 3 men found a big 24L Jar is full of water. Since there is a shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11-litre Jar.

How do they do it?

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Why is the longest human nose just 11 inches?

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Why is 6 afraid of 7?

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You are given 2 eggs.
You have access to a 100-storey building.
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Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process

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13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

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Gamers

In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.