What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

What does this mathematical rebus means ?

A father's child, a mother's child, yet no one's son.

Who am I?

What two things can you never eat for breakfast?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

James ordered a fishing rod, priced at $3.56. Unfortunately, James is an Eskimo who lives in a very remote part of Greenland and the import rules forbid any package longer than 4 feet to be imported. The fishing rod was 4 feet and 1 inch, just a little too long, so how can the fishing rod be mailed to James without breaking the rules? Ideally James would like the fishing rod to arrive in one piece!

What is the word or phrase?

Can you place six X (crosses) in below board without making three in a row in any way ?