Woman shows how to perfectly slice watermelon - and all you need is dental floss

The woman showed how to do the same for slices of watermelon (Shutterstock)

There's a life hack for just about everything these days - from freshening up stale bread to stopping flies from getting in your kitchen.

We also recently learned how to cut a perfect slice of cake and now we've been shown how to do the same for slices of watermelon.