Math Riddles: Find out how brilliant you are. Only 1% of people with a high IQ can find the missing numbers in these tricky logic math puzzles in 20 seconds each.

Math Riddles: Today, we have logic puzzles where we have mind-mending equations, and one has to find the missing number for an equation.

California’s proposed new math curriculum defies logic A student take notes during his algebra class at McAuliffe Middle School in Los Alamitos on Wednesday, September 27, 2017.

What unifies Carroll's oeuvre is the wit and colour apparent in the manifestations of his wide-ranging mathematical interests, particularly in geometry and logic.