Good ideas - but some parts don't quite work

3.28 feet is a Metre not a meter. that is the US spelling and this is labelled as a UK grid. Cant read a Metre.

An interesting idea badly executed.

Apart from assuming a verb where you had a noun in mind, I got all of these, but the connections were just too hard to make in the time available. To be honest, it would have been a reasonable grid if you had just listed the equivalents. But if you want to clue at one remove then keep the group logic simpler.

Yeh you've got meter/metre completely wrong which makes it very difficult to solve. I like what you're going for overall and would make a great quiz were it not for the 3 minute time limit. It's 2 quizzes in one which seems too much for 3 minutes in my opinion.