Good Riddles

Question: A man came to a hotel on a horse. He arrived on Saterday and stayed for one night. he left the hotel on Friday. How is that possible?

Question: what are the next two letters in this sequence: A, E, F, H, I, K, L, M,

Question: What are the next two letters in the following series and why? WATNTLITFS__

Question: which dress you can not wear?

Question: Your Parents Have Six Sons including you And Each Son Has One Sister. How Many People Are In The Family?