These are pattern matching questions. They test how well one remembers a pattern and apply it. It is a skill but not sure how useful it is in the age of google.

These are pattern matching questions. They test how well one remembers a pattern and apply it. It is a skill but not sure how useful it is in the age of google. This is how IIT JEE (test for engineers in india for darkening IITs) was cracked by brute force pattern matchers who start at kindergarden. The resulting product does not bode well from my anectdotal experience interviewing and working with them.