I try to avoid brute force solutions, but...
Today's Cody Tip of the Day: Make sure you paste your solution into the text box BEFORE you hit submit.
Return the 3n+1 sequence for n
Volume of a Parallelepiped
Create an n-by-n null matrix and fill with ones certain positions
Another colon problem
Find out sum of prime number till given number
Pandigital Multiples of 11 (based on Project Euler 491)
Accessing values in a cell
Singularity v5 (with apologies to the true hack masters)
A matrix of introverts
Numbered lottery balls into cells
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