wingsandturbines
Yep, all 'simple' questions, the issue is the time. Anyone could get 25 out of 25 given more time. 25 questions, 12 minutes - you do the maths!
Questions are all basic arithmatic dressed up - a man drills x hole per minute, how many does he drill in an hour. a rectangle has sides ratio 3:2 the circumference is 12 meters, how long is the longest side. a tyre costs 30 quid, you get 12% discount, how much do you pay for 4 tyres. Stuff like that. (these are rough examples, I can't remember the questions I had on the day).
Maths is my thing anyway, so I can't really say how to prepare for these, but I spent time getting my mental arithmetic back up to scratch - some brain training apps on the iphone helped along with just not using a calculator for stuff I would normally use one for.