Solve and combine:
Pull me from the lion's paw and place me on the page!
A matter of frequency - 10.3, 20.6, 41.2, 82.4, 164.8
. .. .
A risky way to look inside?
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Androcles and/or St. Jerome pulled a thorn from a lion's paw, depending on what you're reading. Thorn is an old English/Norse letter that corresponds to a modern 'th'
Each number is double the one before. As M Oehm pointed out in the comments, the numbers posted describe the frequencies of an octave of the note 'E'.
The hex colour code for cobalt. Cobalt has the chemical symbol 'Co'
The letter 'r' in braille
The ASCII code for 'K'? Perhaps more likely is that it's the atomic number of rhenium, symbol 're'
A CT scan - uses x-rays, which could be seen as risky
Exactly as it says - 'answer?'
'The Correct Answer?'