Found by @twitaculous

This is a competition from Gatwick Airport LGW Login To Enter »

Win a £50 Go Ape voucher, a signed copy of the new Horrid Henry book and more, by answering this question... What anniversary is Horrid Henry celebrating this year? a. 21 years b. 29 years c. 25 years T&Cs:

Sometimes promoters tweet more than once.
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