Testing a person's intelligence has a long, dark history. In the past, scientists even used the measurements of a person's skull to try and denote how clever they were.
Although it's now seen as rather outdated, the IQ (or "intelligence quotient") test is still a well-known way to test your brains. But one 1950's IQ test has recently gone viral for its truly tricky questions. Can you get all 5 right?
Question One: 8 + 8 ÷ 8 + 8 x 8 – 8 = ?
Popular answers to this tricky mathematical puzzle include 64, 65, 72, and 80.
But if you use the correct process (BODMAS, people!) the correct answer is ...
Question 2: What does the roman numeral C represent?
Guesses for this one range between 50, to 100, to 500, to 1000.
How's your knowledge of ancient numbers?
The correct answer is ...
Question 3: What are the first three words of the bible?
Even non-Christians should know this iconic phrase.
Many people guessed "The Lord spoke," "These are the," and "Solomon son of."
But the right answer is, of course ...
"In the beginning"
Question 4: When you add the square root of 81 to 12 squared, what do you get?
Another math question - perhaps a little trickier than the first.
The biggest guesses were 153, 147, 181, and 112.
But the correct one? It is ...
Question Five: Where was Christopher Columbus born?
A final historical question for you - with answers ranging from Italy to Spain to Mexico to China.
But the (potentially surprising) answer is actually ...
How many did you get right?