Daily Challenges

In a computer program, two variables both being set as the product of 'p' and 'q' won't necessarily be the same.

Make sure all the conditions are satisfied as you sort numbers into the correct boxes in this puzzle.

Finding an algebraic formula to describe a pattern can be challenging. What formula describes these dots?

At the core of physics is the idea that the speed of light is a hard universal speed limit. Is it possible that we measured something faster?

Solve this Calcdoku puzzle using careful logic and attention to the properties of arithmetic.

In computer programs, variables are being updated all the time: the value of 'x' can be different at the beginning and end of a program.

Taking the average of speeds requires a bit more thought than a normal mean calculation. Take your time to figure this one out.

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