WHY IS THE H RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

In addition to the two hands on the end of their arms, they also have three hands of cards. Another alternative could be handwriting, of which most people have one, but that could be added into the mix. Did you answer this riddle correctly?
YES  NO  

Fangsgiving. Did you answer this riddle correctly?
YES  NO  

A grave problem. Did you answer this riddle correctly?
YES  NO  

By blood vessels. Did you answer this riddle correctly?
YES  NO  

Fear of utility bills. Did you answer this riddle correctly?
YES  NO  

The Office of the President of the United States. Did you answer this riddle correctly?
YES  NO  

Yellow cards. Did you answer this riddle correctly?
YES  NO  

Happy Hoooowloween! Did you answer this riddle correctly?
YES  NO  

The President Did you answer this riddle correctly?
YES  NO  

The one with the largest head! Did you answer this riddle correctly?
YES  NO