Replace the question mark with the correct number in the below-given picture?

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

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

What brings you down but never up?

A mad serial killer kidnaps people and forces them to play the game of 2 pills with them, In this game, there are pills in the table and one of them is normal pill while the other one is deadly poisonous.
The victim will choose one pill and the killer will pick the other pill and both simultaneously will swallow the pill with water.
victim dies every time.

One day the serial killer kidnaps the Joseph and forces him to play the same game with him.

Joseph solves the mystery of the two pills and remains alive.

Explain?

What four weights can be used to balance from 1 to 30 pounds?

Can you count the number of quadrilaterals in the picture below?

What do you answer even though it never asks you questions?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.