CAD EBG KBM OCR DDH NL?
should be T. The difference between the first alphabet and the last alphabet obeys Fibonacci numbers
Complete the card sequence puzzle by replacing "?" with the correct playing card?
Please complete the pyramid by replacing '?' with the correct number?
1 1 1 2 1 1 2 1 1 1 1 1 2 2 1 ? ? ? ? ? ? ? ? ? ? ? ? ? ?