There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

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

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

For this puzzle, you might have to find logic in something illogical. But hey, it's fun and a healthy little break from your strenuous puzzle-solving sessions.

Can you decipher the meaning in the following cluster of letters?

ITIT,NCENTCENT

Can you find out the total number of triangles in the given figure?

Where do you go to learn how to make ice cream?

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 ?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?