Pool Party

Riddle: There was a pool party. 20 people were invited. Every one showed up. There was no one in the pool before they went in and no one came in after they were in. The life guard had to take a headcount. He counted 20 4 heads. What happened?

Answer: He counted 20 " fore-heads". Source: https://riddles.com/4597

There was a pool party. 20 people were invited. Every one showed up. There was no one in the pool before they went in and no one came in after they were in. The life guard had to take a headcount. He counted 20 4 heads. What happened? — Pool Party by Hsbdbdbdtt Riddle