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

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?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

What seven-letter word has hundreds of letters in it?

When 99 is considered higher than 100?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?