Forget Cheryl's Birthday - a baffling question for 15 year old students at Singapore and Asian Schools Math Olympiads (SASMO) that stumped thousands of adults around the world after it went viral.
This logic puzzle from a Hong Kong elementary school admission test is intended for six-year-olds going into first-grade to solve in 20 seconds, but it has got adults dazed and confused when it went viral on social media.
The question illustrates a parking lot with six spaces.
The numbers 16, 06, 68, 88, x, 98 are visible in the available bays, but one figure (x) is covered by a car parked in that slot.
The question, 'what is the number of the parking space containing the car?'
Can you figure it out?
Try using your logic or algebra to solve the puzzle.
Still haven’t worked it out?
If you haven’t, the answer can be found at the end of this article.
British puzzle inventor David Bodycombe told The Guardian the Hong Kong parking lot logic puzzle was first created by him and published in a 2002 IQ puzzle book for Marks & Spencer.
He came up with the idea after he saw a car park in Portugal about 20 years ago.
ANSWER:
A picture is worth a thousand words. Click to see the answer
Figuring out the solution doesn’t involve any mathematics.
Simply turn the puzzle upside down.
As the bays are numbered sequentially, the numbers are 86, 87, 88, 89, 90, 91.
So, the answer is 87.
