Knowledge Trainer - the Quiz Game has just arrived on Xbox and PC to put that confidence to the ultimate test.
The Mirror US on MSN
'Only 10% of people' can answer this tricky brainteaser - can you get it right?
A tricky brainteaser has left people scratching their heads as they try to work out the answer - and according to The 1% Club ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback