How many wheels are there on the trailer of an "18-wheeler" truck?

More Questions:

Which European city is served by Galileo Galilei Airport?

'Double Your Pleasure, Double Your Fun" was an ad slogan used by what product?

What was the original cost of the first Ford Model T, sold in 1909?

What country saw the origin of lawn tennis?

Antananarivo is the capital of which country?

Which is US's largest state by land area?

What 2 planets in the solar system are typically synonymous with the man and woman?

In what part of the human body would you find the fissure of Rolando?

What nerves, which you need for vision, are sometimes referred to as the "second cranial nerves"?

What is a female chicken between the ages of eight weeks and one year old called?

Randy Poffo, who was a pitchman for Slim Jim and appeared in 2002 film "Spider-Man', was better known by what name?

In The Simpsons, who once attacked Lisa when she was cross-country skiing?

Which "Family Guy" character war married to Loretta?

Which British Prime Minister was assassinated in 1812?

What year did the "Turbot War" fishing dispute end?