what does the below math rebus puzzle mean?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Can you spot the man between the coffee bean in the picture below ?

What is the next shape from answers A, B, C, and D figure?

There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

Find out the missing number in the picture attached:

How can you tell a raw egg from a hard-boiled egg?

Move four matchsticks to the below square to form three squares?