I got tired of solving these problems. So, I just wrote a solution that works for everything.
Who Has the Most Change?
Omit columns averages from a matrix
Make one big string out of two smaller strings
Find a subset that divides the vector into equal halves
kmph to mps
Lights Out 8 - 5x5, light-only solution? I
Calculator spelling - Numbers to Letters
The 5th Root
Pattern Recognition 3 - Variable Unit and Array Length (including cell arrays)
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