A man rides into an inn on Friday, stays for three nights and rides out again on Saturday. How can this be?

“The man rides into the inn on a Friday and leaves on Saturday.”

This answer incorrectly interprets 'Friday' as a day of the week rather than the name of the horse, which is key to understanding the riddle.

“The man stays for a full week and leaves on the next Saturday.”

This guess fails to recognize the play on words regarding the name 'Friday' and does not account for the fact that the events take place in a span of three days.

“The man is time traveling and can manipulate days.”

This answer introduces an unnecessary and unrelated element of time travel, which is not hinted at in the riddle; the solution relies solely on the clever use of names.