What is the Surname of Barbie Doll?

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

Which letter of the alphabet has the most water?

If your uncle’s sister is not your aunt, what relation is she to you?

Solve the mathematical equation in the picture below.

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.