Multiple choice general knowledge math & puzzles

-1,-1,3,19,55,__

  1. 91

  2. 65

  3. 119

  4. 136

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The differences are $0, 4, 16, 36$. These are squares of even numbers: $0^2, 2^2, 4^2, 6^2$. The next difference should be $8^2 = 64$. $55 + 64 = 119$.