Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

What number do you get when you multiply all of the numbers on a telephone's number pad?

A bomb exploded in a room full of married couples and no one died. How?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

What word is pronounced the same if you take away four of its five letters?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.