If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

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

A man dies of old age on his 25 birthday. How is this possible?

Find the Goldfish below the given Image.

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

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.

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?