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

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

John walks into the daily grocery shop and steals a $100 bill from the shop. An hour later John returns to the shop and buys some daily products for $40. John pays the owner the $100 bill and therefore the owner returns him $60.

How much money did the owner lose?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

How many times in a given day, minutes and hour clock comes in a straight line ?

I make two people out of one. What am I?

People put me on the table and cut me but do not eat me. What am I?

Complete the table series riddle by finding the number that can replace "??".