Как правильно how many sweets или how much sweets ? !

How many sweets - сколько сладостей. many потому,что исчисляемое существительное.

Так как sweets - исчисляемое существительное, то how many sweets?  

3 Were the mirrors clean?
4 Does Mary come from Russia?
5 Will Jane go to school next year?
6 Are there some shelves on the wall?
7 Do our teachers speak English well?
8 Did I write this dress last lesson?
9 Can I ask questions at the lesson?
10 Would Tom like to ride a car?
2 Did Tom buy some cakes?

Hello, I will be in the Maldiwes this week

My father resigned when I was sixteen, and we moved to a small town