Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

What's the only room from which no one can enter or leave

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Which five letter word can be added at the end of below word to form a
valid word?

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Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle: