Count the number of lines in the image below ?

I look at you, you look at me I raise my right, you raise your left. What am I?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

What does the below rebus riddle means?

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?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?