How do we answer all the code couch questions while some are locked and the unlocked ones are correct

Answer 1

Try to read what they are asking and you will be able to pass all tests!

Answer 2

I've tried that the first two are correct y r the locked one's not

Answer 3

Because you might be doing something wrong

Answer 4

You should then put your code and ask question :-)

Answer 5

Sepcify your question for one Coad coach and post your try....
Normally the problem ks that the locked test cases have an Input to high for floats or sth. like that....