SQLol - Challenges

Note: Not all challenges have known solutions on all databases.
Challenge 0 - Hello, world!
Challenge 1 - SQL Injection 101
Challenge 2 - The Failure of Quote Filters
Challenge 3 - Death Row
Challenge 4 - War on Error
Challenge 5 - Blind Luck
Challenge 6 - Stack the Deck
Challenge 7 - Walking on Thin Ice
Challenge 8 - Black Comedy
Challenge 9 - Administrative Tasks
Challenge 10 - No WHERE
Challenge 11 - No WHERE 2
Challenge 12 - XSSQLi
Challenge 13 - LIKE OMG
Challenge 14 - Now you have two problems