Can you find out the missing number in the grid?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

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

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

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Can you find a rabbit in the given picture?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?