Find out the missing number in the picture attached:

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

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

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Can you find out the total number of triangles in the given figure?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Solve the puzzle by telling what does below picture means.

Can you name an animal whose killing cannot be performed without spilling your own blood?

Can you fill the blank with the correct number?

6 30 870 756030 _____