Answer:
The negative hero in each story
There is a woman in a boat, on a lake, wearing a coat. If you want to know her name, it’s in the riddle I just wrote. What’s the woman’s name?
What leaps one time out of four?
If someone calls you this, it might be time to consider hot wax
What runs around the whole yard without moving?
I met a man on the London bridge, he tipped his hat and drew his name, in this riddle I told you his name. What is it?