How many configurational stereoisomers exist for this structure?

Which of these molecules is a meso compound?

How many of the existing configurational stereoisomers are chiral?

Which of the given chair conformations represents a meso compound?

Which of the following are meso compounds?

I. 2,4-dichloropentane

II. 1,3-dimethylcyclopentane

III. 2,3-dichloropentane

How many possible stereoisomers does the product of the following reaction have?