How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

A sundial has the fewest moving parts of any timepiece. Which has the most?

What is always in front of you but can’t be seen?

Solve the following series:
AZ, GT, MN, __, YB

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

You can see three almost identical images below. Can you spot the odd one out from them?

Find the last number in the series below:

voN luJ yaM raM ---

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

John is the son of Jacob.
So,
Jacob is the_____of John's father?