I really don't see the point of that kind of problems where you can't use Matlab built-in functions.
The Goldbach Conjecture
Who knows the last digit of pi?
"Low : High - Low : High - Turn around " -- Create a subindices vector
Sum the Digits of a Number
Cody Computer Part 5 - Guess the Name of Cody Computer
Return unique values without sorting
Make a logical diamond using GALLERY function
Multiply 2 numbers
Join Strings with Multiple Different Delimiters
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