Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

What goes up but never comes down?

Two fathers and two sons decided to go to a shop and buy some sweets upon reaching. Each of them bought 1 kg of sweet. All of them returned home after some time and found out that they had 3kg of sweets with them.

They did not eat the sweets in the way, nor threw or lose anything. Then, how can this be possible?

Identify the 10 differences between the two given pictures.

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

Can you find the six hidden animals in the picture below?

Can you count the number of squares in the figure below?

The answer I give is yes, but what I mean is no. What was the question?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?