What word does this rebus represent?

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If your uncle’s sister is not your aunt, what relation is she to you?

How can a man go eight days without sleep?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

There is a jar in which there are two types of candies.
20 blueberries and 16 strawberries. You perform the following steps:
1) You take out two candies.
2) If the two candies are of the same flavour, you add a blueberry one otherwise, you add the strawberry one.

You repeat these two steps till there is just one candy remaining in the jar. Which flavoured candy will be left?

What month of the year has 28 days?

what does this picture(rebus) riddle means ?