The Plane Passengers

A German, an Australian, and a Mexican are on a plane. They say that they can tell where they are by sticking their hands out of the pane.

The German sticks his hand out and says, "We are in Germany." The others ask, "How do you know?" The German says, "Because it's so cold."

Then the Australian sticks his hand out and says, "We are in Australia." The others ask, "How do you know?" He replies, "Because it's so warm."

Then the Mexican sticks his hand out and back in. He says, "We are in Mexico." The others ask, "How do you know?" He says, "Because my watch is gone."