Solution:

180

2 + 2 = 4 {2 * 2 * 1}
3 + 3 = 18 {3 * 3 * 2}
4 + 4 = 48 {4 * 4 * 3}
6 + 6 = 180 {6 * 6 * 5}

Solution:

Hhe hung herself using big Ice slabs , which are now now melted and hence puddle of water.

Solution:

There are 3 fruits (1 grapes, 1 apples, and 1 oranges).

Solution:

888 + 88 + 8 + 8 + 8 = 1000

Solution:

10

Explanation:
Equation 1 + 9 + 11 = 1 can be derived from
One (o) + nine (n) + eleven (e) = one => 1

Similarly for equation,
12 + 11 + 9
Twelve (t) + eleven (e) + nine (n) => ten (10)

Solution:

I am word "Introvert"

Solution:

They use the bricks and dirt from the tunnel to stand on it.

Solution:

Move and then pour all juice from second glass to fifth glass.

Solution:

You will ask, I have a number in my mind that i.e. either 2 or 3. Is the number that I have in my mind smaller or equal to the number that you are thinking of?

If Alan replies with no, he is thinking of the number 1.
If Alan replies with yes, he is thinking of the number 3.
If Alan replies with don't know, he is thinking of the number 2.

Solution:

Playing chess

Game needs two players so Brother-8 is playing chess with Brother-2

Solution:

The matchsticks that are marked with red are to be removed and the final figure will have just two squares. You can remove either pair from the possible four ways.