What has to be broken before you can use it?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Count the number of triangles in the given picture.

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

What common phrase is represented by the below lines

Easy going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Medium going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Tough going:
Weak, 'I can't do it, I'm staying!'
Tough, 'Let's get going.'

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Keyboard words are not in alphabetical order, Why?

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example: 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition use of the number 32 is a must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell me any other solution?