Five people were solving their favorite type of puzzle on a website. From the clues below, determine the name of the person, their screen name, what puzzle they solved, and how long it took to solve it.

1- Michael's wordsearch took eight minutes longer to complete than person who screen name is whsprec.
2- Keith's screen name is Genius1.
3- It took usernameplease 6 minutes to solve their problem, which was not a logic grid.
4- Jennifer took four minutes longer on her puzzle than Brittany did on hers, which was not sudoku.
5- The person who solved a letter-equation was named PeaceAll, and did not take 18 minutes.
6- It was the cryptography puzzle which took 14 minutes to complete.