I shave every day, but my beard stays the same. What am I?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Spot the cat in the picture below

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Why do we preferably have round manhole covers and not square ones?

Count the squares in the matchstick puzzle below?

Can you count the number of quadrilaterals in the picture below?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside. The man said, "Oh! I am really sorry, I thought this was my room." He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man. What made her suspicious of that man? He might have been genuinely mistaken.

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

What is the Surname of Barbie Doll?