If,

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

Then

4 / 5 = ?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

How many triangles can you find in this given picture?

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?