#4 Kids
Never underestimate the sensibility of a kid. Sometimes, they can be smarter than you. Even before you realise, they'll troll you in the most unbelievable way possible.
On the internet, something on the same lines is happening. Checkout ahead whether you are smarter than the kids or no.

#3 This Puzzle
Look at the picture here. This is a simple test. The weird thing about this test is that the children seem to crack this riddle quicker than the adults. You'll have to figure out a way to somehow find a solution to this.
Keep reading ahead to know the correct answer.

#2 Take Your Time
Still thinking? This problem requires a bit of thinking outside the box. If you're anything like me, then you were probably looking for a pattern. I know I was trying to see how 16 became 8 and then using that to see if it worked for the next space.
It's not that easy.

#1 The Answer
Need a hint? Try and change the way you are looking at the problem maybe? Try approaching it from a different angle!
Alright, we'll tell you the answer. Look at the puzzle upside-down! Then you'll see a pattern that actually works - the new perspective is all you need! The answer is 87. Got it, right?