In Roman numerals it's 1010
1010 in binary is 10
In octal system it's 12
Alphabetically it's 2424
In ASCII HEX it's 5858
Is this one of those lateral thinking trick questions? How does X correlate to XX (if they even do that in any way). And nope, I'm not a math prodigy, not even close.
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn!
"The sky was the color of a TV tuned to a dead station" - Neuromancer