word play jokes

Sarah, the teacher, asked her 5th grade history class, "When was Rome built?" and called on Timothy to answer first.

"Rome was built at night," was his answer.

"At night?" asked Mrs. Taylor, holding her ruler firmly in her boney-knuckled hands. "How ever did you get such an idea?"

"Well," gulped the student, hoping his answer would satisfy her, "everyone knows Rome wasn't built in a day."

What do you call someone who tells dad jokes but isn't a dad?

A faux pa.

What happens when someone slaps you a million times in one second?

It mega hertz.