Can you decipher the two rows to find the hidden word?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

By what process could you make a 'Tea-Table' into food?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Find out the missing number in the picture attached:

Which point will the car reach to go out?

Which letter of the alphabet has the most water?

Can you count the number of triangles in the given picture?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13