The following are headlines from recent news reports.
All five are encrypted with the same mixed alphabet at
different settings against itself. Find each headline and
the three key words (SETTING, KEY and HAT).
1. IQD VFZCGNKYC FZ CIWTD YUIRCY NJ CQMGDYCQI
2. MNLDD ZHOWPXDU NPYP XD KWZTL ZH DH IZVUDPDBX DBBWU
3. NXPSBXS USC AKFJKS BHGFQH XAEWRKG MEWSUBIKGB BRXIB
4. YNKUG IJWFPI KWRCY BFQEIEVC NMMNYFUFNZ UN PNZUFZKC MCIPC
5. JYTRT EDATUVZ GVTX AJ ATN DNHDZZ JUV HJRGTXB GMJKUAZ