How many regulation strokes are there in swimming?

How many gold medals has Usain Bolt won?

Where was Manny Pacquiao born?

What is the only sport to be played on the moon?

How tall is Kai Sotto as of today?

Which sport uses a net, a racket, and a shuttlecock?

He invented the game Basketball

He invented the game Volleyball

Michael Fred Phelps II is an American former competitive swimmer and the most successful and most decorated Olympian of all time, with a total of____ medals