This story is African American, from somewhere in the Caribbean.
Once there was a king whose wife always had the last word. One day, he decided to offer a reward to the first person who could call his wife a liar three times, and get away with it. Well a few tried, with no success, then one day, an Old Guinea man went to the queen and asked her did she know the months of the year, and would she tell them what they were.
She said January.
He said January.
She said February.
He said February.
She said March.
He said March.
She said April.
He said April.
She said May
He said May.
She said June.
He said June.
She said July.
He said You Lie.
She said JULY. He said, You lie. She said JULY! He said You lie.
"Can't you talk any better than that?" said the queen.
"No ma'am," said the Old Guinea man.
"Then I don't got no time for you," said the queen, and she went back to the palace.
But the old Guinea man got his reward, because he'd called the queen a liar three times.