I fancy going next. I came across this maths problem branded as a riddle a few months back and from what I read in the comments on the website people found it pretty hard and I don’t know why considering it was pretty basic; so I figured I’d give it to you guys.
It goes like this:
A kid has 3 pets, the first and second weigh a total of 7kg, the second and third weigh a total of 8kg and the first and third weigh 11kg. How much do they weigh separately?