Can you make four (4) nines (9) equal 100?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

If,

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

Then

4 / 5 = ?

How many letters are in the alphabet?

What do you think with the below Picture ?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?