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

What number comes next in this sequence:
7 8 5 5 3 4 4 _

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

how come the second man dies?

Which English verb becomes past tense just by rearranging the letters?

There is something which you can be arrested for attempting but not for successfully completing.

French Police inspects a room where there are no windows, no doors, no tables and is almost empty expect there is just a puddle of water. They found a dead man who obviously hung herself from the ceiling, but they are not able to figure out how this had happened.

John and Jacob entered the crime scene and easily able to solve the case.

How did the man die?

Prove that twice of ten is the same as twice of eleven.

Which point will the car reach to go out?