You added a few primes in each iteration... Very nice!
Similar Triangles - find the height of the tree
Number of Horns on a unicorn!
Given a matrix, swap the 2nd & 3rd columns
Another colon problem
Divisible by 3
Decrypt the cypher using XOR encryption (for beginners)
Replicate elements in vectors
Return a list sorted by number of consecutive occurrences
I want to know everything!
Rank of magic square (for beginners)
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