What is the below Rebus indicate?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

I am quite hot but become too cold if you remove the first two letters. What am I?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Why is it very easy to weigh a fish?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

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

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

Two brothers were watching a horror film on video late one night. One brother dozed off and dreamed that he was being chased by the crazy man from the movie, who was trying to kill him. In the dream, he hid in a cupboard. There was no sound except his heart pounding, and he had no idea where his crazed captor was. He was terrified! At that moment, the video finished, and his brother put his hand on the shoulder of his sleeping sibling to wake him. The shock at that tense moment was enough that the sleeping brother suffered a massive heart attack and died instantly. True or false?