What is the shape of a football?

Which of the following countries has won the most World Cup titles?

A football team has scored 5 goals in a match. If each goal is worth 1 point, what is their total score?

Which symbol represents "less than or equal to"?

≤

What is the ampersand notation for "plus or minus"?

±

What is the ampersand notation for "there exists"?

∃