The more it dries, the wetter it becomes. Can you tell what it is?

Can you replace the question mark with the correct number in the below table sequence?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

Eight of us go fourth, not back, to protect our king from an attack. What are we?

What is always in front of you but can’t be seen?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

What four weights can be used to balance from 1 to 30 pounds?