What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

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

Forwards I am heavy, backward I am not. What am I?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

What is the coolest letter in the alphabet?

One day Jenifer meets the Lion and the Tiger in the Forest of Forgetfulness. She knows that the Lion lies on Mondays, Tuesdays, and Wednesdays, and tells the truth on the other days of the week. The Tiger, on the other hand, lies on Thursdays, Fridays, and Saturdays, but tells the truth on the other days of the week. Now they make the following statements to Jenifer:

Lion: Yesterday was one of my lying days.

Tiger: Yesterday was one of my lying days too.

What day is it?