For my information direct is used as an (adjective). And Directly is used as an (adverb).
Look at this example:
1- The direct method, came as an alternative to the grammar method. (Adjective)
- It was a direct question. (Adjective)
2- Go directly through this way, you will find the bank. (Adverb)
Your examples are correct except the first one.
Student or Learner