IQ Riddles

IQ Riddles are riddles that test your IQ. They are usually in the form of a logic riddle.

Sand Smuggler

Every day, a man crosses the border of Mexico on a bicycle with two bags of sand.

The custom officers check his bags and they are full of sand. The custom officers are aware that he is smuggling something but are not sure what is it exactly. As they do not have any evidence, they let him cross the border.

What is he smuggling?

Riddle Answer