What does below chemistry rebus means?

What is the word or phrase below?
R | E | A | D

Can you find a number that lies one third of the distance between 1/3 and 2/3?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

Can you replace the question mark with the correct number?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

There are hundred red gems and hundred blue gems. The blue gems are priceless while the red gems equal wastage. You have two sacks one labeled Heads and the other Tails. You have to distribute the gems as you want in the two sacks. Then a coin will be flipped and you will be asked to pick up a gem randomly from the corresponding sacks.

How will you distribute the gems between the sacks so that the odds of picking a Blue gem are maximum?