Only 1 out of 1000 people manage to solve this riddle! Share if you’ve found the answer

Riddles with numbers always manage to make people scratch the head, and the fact there could be several answers invariably leads to discussions and arguments.
This is a wonderful example. When this riddle was shared on Facebook, people said that only 1 out of 1000 manage to solve it. We do not know if this is true, but many people have tried to solve it, and most of them did not succeed.
So get ready to check out your genius and share with others if you think you’ve managed to solve it.

To answer the riddle and replace the question mark number, you need to think outside the box.

Ever since the riddle was published on Facebook, more than 6 million people replied to it!
What’s interesting is that during the road people reach two different answers – since there are two ways to solve this.
Think you can?
Ready for the answer?
Some of the people say its 40, others say 96, and they are both right!