What type of interchange, that is widely used in North America and in some pArts of Europe, did the Ontario Ministry of Transportation invent?

More Questions:

What cartoon character is used by Owens-Corning in ads for its insulation products?

In "The Twelve Days of Christmas', what did my true love send to me on the sixth day?

Rodin's "The Thinker" is believed to be a portrait of what Italian poet?

Khartoum is the capital of which African country?

What shape is the piston in a "Wankel" engine?

What planet is the coldest in our solar system?

In 2006, David Bowie was awarded a Grammy award for what?

What did Harry Stone wear under his judge's robes on the TV show "Night Court"?

In the Godfather films, what fruit's appearance foreshadows death?

The 1975 movie "The Man Who Would Be King" is based on the tales of which author?

What ventriloquist had dummies named Charlie McCarthy and Mortimer Snerd?

The Parthenon in Greece was dedicated to which Greek Goddess?

Which Roman emperor died after eating poisoned mushrooms given to him by his wife Agrippina?

The Balfour Declaration was published in what year?

On what island is King Arthur buried?