Remove all the consonants
Replace NaNs with the number that appears to its left in the row.
It dseon't mettar waht oedrr the lrettes in a wrod are.
Who knows the last digit of pi?
Perfect Square or not
Create the following sequence : 0 1 1 4 9 25 64 169 ...
Find the area of the four walls
Find the dimensions of a matrix
Find the square of the sum of the digits of a number
Convert a number to its Roman representation
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