Why is it very easy to weigh a fish?

Find out the missing number in the picture attached:

How could a baby fall out of a twenty-story building onto the ground and live?

You need to arrange three 7 and mathematical symbols to form number 1?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

A man is trapped in a room. The room has only two possible exits doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

There are a hundred statements.

First person says: At least one of the statements is false.

Second person says: At least two of the statements is false.

Third person says: At least three of the statements are false.

Fourth person says: At least four of the statements are false.

..

..

..

Hundredth person says: At least a hundred of the statements are false.

Analysing it, how many statements do you think are false and how many are true?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?