How many words can a pen with half refill write?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Which wheel of car does not rotate when you turn your car right?

There is a place where if I stand up straight, I will still be considered sideways.

Why did the Girl throw the butter out of the window?

Can you count the number of quadrilaterals in the picture below?

How is the moon similar to a dollar?

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

How many letters are in the alphabet?