Remove all the consonants
radius of a spherical planet
Back to basics 13 - Input variables
Back to basics 25 - Valid variable names
Sum the 'edge' values of a matrix
Calculate cosine without cos(x)
Calculate the answer to life the universe and everything
Calculate the hypotenuse of a right triangle without using ^ and sqrt ()
Calculate sin(x) without sin(x)
How many hours are there in a day in Italy?
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