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Truth or lie? Help Mathilda choose the box that will land her the new job.

Based on her friends’ clues, can you help Cindy figure out whether her new companion will be feline or canine?

At Mathville Elementary School, all 242 students have marbles. Can we be certain that at least two students at the school have the same number of marbles?

Help the city planner design the new look of city hall. Nested circles, areas, radii — there’s plenty to think about!

Ben is in charge of a ride at the amusement center where he works. When will he take his next break? That all depends on the merry-go-round !

Discover how the magician manages to calculate faster than the calculator, and you too can impress the crowd.