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

Okay before we begin with the puzzle, do keep in mind that you have to answer it quickly.

You are participating in a car race. Seeking the perfect moment, you overtake the second person in the race. What positions are you in now?

What is the word or phrase below?
R | E | A | D

There were five men at church, and it started raining while they were outside. The four that ran still got wet, but the one that was still stayed completely dry. Why did he stay dry?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

The more it dries, the wetter it becomes. Can you tell what it is?

Can you find the dog hidden in a group of pandas?