what's the probability of getting a king or a queen from a pack of 52 cards?

A person was killed at a house party. When the police arrive, there are six people present in the house who are the friends of the victim. The name of the friends is Rohit, Aman, Nick, Gagan, and Randy.

Near the dead body, they find a few numbers written with blood by the victim on the floor. The numbers are 8, 5, 4, and 11.

The police arrests one of the friends for the murder. Whom did they arrest and why?

I throw two dice simultaneously.

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

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

If 1+9+8=1, what is 2+8+9?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not-rounded numerals equals 24.

What am I?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?