What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

How many triangles can you count in the figure given?

In a basket of apples,
when counted in twos, there was one extra
when counted in threes, there were two extra when counted in fours, there were three extra
when counted in fives, there were four extra
when counted in sixes, there was five extra.

However, if the apples were counted in sevens, no extra apple was left. Can you calculate the minimum number of apples that were present in the basket?

What Adam and Eve do not have but the rest of the people have?

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

What kind of band never plays music?

I make two people out of one. What am I?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?