What do the angles inside a square add up to?

More Questions:

Who wrote the collection of Science fiction stories that made up the book "I, Robot"?

How many lords are leaping in the song "The Twelve Days of Christmas"?

In what city would you find Grant Park?

Long-period comets are believed to come from where?

What word describes the enlargement of bone or tissue at the joint between the big toe and the foot?

'The Imperial March" is the theme music of what movie villain?

In which movie did Kim Novak portray a witch?

What is the first rule in the movie "Fight Club"?

What year did Jimmy Carter become president of the United States?

Which tax was introduced into Britain in 1973?

What year was Ben Franklin born in?

In what type of container was Lord Nelson’s body returned to England?

Canada's Maple Leaf national flag was introduced under which Canadian Prime Minister?

Anthocyanins are compounds which produce what?

The Golden Rain is the common name of what tree?