why is a firetruck red?

Because оладья, кекс, маффин button.

Actual answer Ты want: Cause there's eight wheels on them and four people, and four plus eight is twelve, and twelve is a foot and a foot is a ruler, and Queen Elizabeth was a ruler, and Queen Elizabeth was also a ship, and the ship sails the sea and in the sea is рыба and рыба have fins, and the Finns fought the Russians and the Russians were red and that's why firetrucks are red.