Find the numeric mean of the prime numbers in a matrix.
Find the peak 3n+1 sequence value
It dseon't mettar waht oedrr the lrettes in a wrod are.
Area of an Isoceles Triangle
Under the sea: Snell's law & total internal reflection
Smallest n, for n! to have m trailing zero digits
Make a rainbow matrix (follow-up to checkerboard matrix)
Fractal: area and perimeter of Koch snowflake
The last non-zero digit of a factorial
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