RIDDLE 1
How can you physically1 stand behind your friend as he physically stands behind you?

RIDDLE 2
A beggar's brother died, but the man who died had no brother.
How could this be?

RIDDLE 3
Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

ANSWER 1
By standing back to back．

ANSWER 2
The beggar is female．

ANSWER 3
Because they were all married and not single．