What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

What can you hold in your right hand, but never in your left hand?

What is always in front of you but can’t be seen?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

Using Only Five 5's and any mathematical operator make sum as 37

I have feet, but no legs. Which animal Am I?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

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