I HAVE 15 AND IM THINKING OF SPENDING 3 RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

The speed at which a pendulum swings is called the period and given by the equation:


2 x pi x square root of (length of rope from fulcrum to Center of Mass divided by gravity)

Since gravity is constant, the only thing that effects the period is the length of rope. In the above scenario, you assume the man is taller then the child. Therefore his center of mass is higher. This makes the distance between the fulcrum to the center of mass shorter then for the child. The man swings faster. Did you answer this riddle correctly?
YES  NO  

31131211131221.

Each line, excluding the first, describes the one before it.

1
11 <---describes 1st line, read as "one 1"
21 <---describes 2nd line, read as "two 1's"
1211 <---describes 3rd line, read as "one 2 two 1's" Did you answer this riddle correctly?
YES  NO  

The guy who drank five glasses survived because the poison was in the middle of ice cubes. He drank rapidly and thus the ice had no chance to melt in his drink while the other one drank slowly and thus enough ice had melted in his drink to poison it heavily and he died. Did you answer this riddle correctly?
YES  NO  

Money (coins specifically). Coins have two faces, heads and tails. People fight for money, and money travels far and wide. Kings live on when theyre depticted on a coin. Sharing money with others is a meaningful experience yet many people keep their money locked up. Did you answer this riddle correctly?
YES  NO  

Look at the stripes at tiger's body. It's written there. Did you answer this riddle correctly?
YES  NO  

The number is more than 100. Did you answer this riddle correctly?
YES  NO  

40 triangles

16 + (8x2) + (4x2) + (1x2) + (1x2) Did you answer this riddle correctly?
YES  NO  

Twick or Tweet Did you answer this riddle correctly?
YES  NO  

Mary McLeod Bethune Did you answer this riddle correctly?
YES  NO  

George Washington Carver Did you answer this riddle correctly?
YES  NO  

Water Did you answer this riddle correctly?
YES  NO  

Light both ends of one rope, and only one end of the other rope. This will cause the first rope to burn out in 30 minutes. When the first rope burns out, there will be 30 minutes left on the second rope. So then, light the other end of the second rope, and the rest of it will burn out in 15 minutes. 30 + 15 = 45 minutes. Did you answer this riddle correctly?
YES  NO  

The 3rd person is the "night" (knight) Did you answer this riddle correctly?
YES  NO  

Stop imagining! Did you answer this riddle correctly?
YES  NO  

The thief is the Sri Lankan seaman. They are on a Japanese ship, so it will bear a Japanese flag. The Japanese flag will look the same upside down. Did you answer this riddle correctly?
YES  NO