I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

What have one eye but still cannot see?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

John was piloting a plane behind a car but was never able to overtake it. Why?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

What jumps when it walks and sits when it stands?

What goes through cities and fields, but never moves?

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?