Good Riddles

The Tide (medium)

By Fred

Question: At low tide 14 rungs of a ship are above the water, the rungs are 15 centimeters apart. each 15 mins the water rises 15 centimeters. after 2 hours and 30 mins how many rungs are above the water?

Brain teaser (medium)

Question: Which thing that comes once in a year, twice in a week?

Who am I? (medium)

Question: I will give you power I will give you gold just to see who you really are!! Who am I?