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What does sustainable?
Quiz Winter Olympics
How familiar are you with the Winter Olympics?
How much do you know about this topic?
How much do you know about the world championship for solar-powered vehicles in Australia?
The car celebrates its 130th birthday – Many happy returns!
How much do you know about easter traditions?
What do you know about brands?
Christmas? The best time in the year?
Quiz Family-owned companies and SMCBs
What are the largest and oldest German companies, and where are they headquartered?
What signs of quality are important to you?
Have you done your homework before heading off on your holiday to Turkey?
Quiz Energy efficiency
How energy efficient are you?