Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Century (11)	One hundred questions asked!
Cher This (17)	You made Nathan sing a song.
Committed (13)	Five hundred questions asked!
Consultant (19)	One thousand responses revealed!
Curious (12)	Two hundred and fifty questions asked!
Day Tripper (14)	Eight hours played
Dictionary (36)	Three thousand questions asked!
Employee of the Month (51)	Twenty five hours played
Epic Justice Fail (25)	Solved in six
Have You Been Drinking? (29)	Solved in five
Hintless Wonder (29)	Zero hints, and you absolutely didn't cheat at all.
Hinty Aftertaste (51)	It's a bit hinty in here.
House Officer (12)	One hundred responses revealed!
How Un-Four-tunate (25)	Solved in four
Hundy Hints (21)	Excellent hint usage.
Inquisitive (13)	One thousand questions asked!
Intern (10)	Ten responses revealed!
Late Shift (29)	Twenty hours played
Lucky Guess (23)	Solved in one
Mind Games (13)	Fifty insanity points reached
Movie Length (12)	Two hours played
Part Timer (12)	Four hours played
Practitioner (13)	Five hundred responses revealed!
Registrar (13)	Two hundred and fifty responses revealed!
Second Time Lucky (23)	Solved in two
Seeing Things (17)	Two hundred insanity points reached
Slightly Mad (14)	One hundred insanity points reached
Slightly MDA (16)	One hundred and fifty insanity points reached
Specialist (15)	Seven hundred and fifty responses revealed!
Thorough (19)	Two thousand questions asked!
Three is the Magic Number (21)	Solved in three
Totes Mad (25)	Three hundred insanity points reached
Twenty Questions (10)	Twenty questions - well done!
Two Working Days (23)	Sixteen hours played
Youthulhu (29)	Five hundred insanity points reached