Official Challenges

ruby

Ruby easy 69 questions 6 minutes
Ruby medium 16 questions 1 minute
Math basic 20 questions 2 minutes

javascript

Hacking basics 11 questions 1 minute
Javascript jokes 32 questions 3 minutes

sql

Logical Operators 8 questions 1 minute
Arithmetics 6 questions 1 minute
Date & Time 7 questions 1 minute
Regular Expressions 20 questions 2 minutes
Date and Time 19 questions 2 minutes
Window Function 13 questions 1 minute

Score

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