Do You See It?

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?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Which tank will fill first?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

When can we add 2 to 11 and get 1 as the correct answer?

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?