Question: Which idiom best describes a situation where two groups have some common characteristics but are mostly different?

Options:

1. Two peas in a pod
2. Birds of a feather flock together
3. A square peg in a round hole
4. Different strokes for different folks

Correct Answer: Different strokes for different folks

Solution:

The idiom \'Different strokes for different folks\' indicates that while there may be some similarities, the groups are largely different.