> How do you know if anything your brain is comprehending is real – could it all just be in your brain?
> How can you create an equation made up of only eight of number 8 and any number of ‘plus’ signs to equal 1000?
> A shop owner can fit 8 large boxes or 10 medium boxes into a container for delivery. In one consignment, he distributes a total of 96 boxes. If there are more large boxes than medium boxes, how many containers did he ship?