It’s the weekend and we can’t think of any better way to kickstart the fun than a tricky mental challenge. Riddles and puzzles have an element of spart that appeals to the masses and this next challenge is just that and more.

Below, you’ll find a picture that encases an interesting scenario. And we want you to take a good look before moving ahead. There seems to be a family that’s enjoying their meal.

Everyone appears to enjoy this family time, from spaghetti and grilled chicken to coffee and juice. But wait, there’s a chance you’re missing out on something crucial.

The creators of this difficult conundrum want you to know that there’s a big mistake in this picture that 90% of viewers missed. Would you be so kind as to set aside some time to investigate this? Remember, we have complete faith in you, so consider your options carefully!

Do you see how the young guy is using a knife to stir the tea? That should clearly not happen at a family dinner! How many of you were able to recognize that right away? Please let us know in the comments!