Suppose you are asked to test the following Java method that converts given temperature in Fahrenheit, Kelvin or Delisle to Celsius.

1. List the minimum set of test inputs that will achieve 100% branch coverage (for each test input specify the branch(es) it covers).
2. List the minimum set of test inputs that will achieve 100% feasible path coverage (for each test input specify the path it covers).
3. Briefly discuss if the execution results of the test sets above reveal any bugs in the code.