using four eights (8) and a one (1) and one mathematical symbol , create the number 100

How many times do a clock's hands overlap in a day ?

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

Spot what is wrong here in below Picture?

Move four matchsticks to the below square to form three squares?

What is full of holes but still holds water?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

Solve the equation in the image by looking at the pattern closely.