What does the below image rebus riddle means ?

What does the below mathematical rebus mean?

When it's bad luck to meet a black cat?

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

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

who is silent in the parliament?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?