So, now that you know what a Caesar Cipher is try decrypting these messages:

1. OVD JHU ZVTLVUL IL KPYA WVVY, HUK HUVAOLY IL MPSAOF YPJO?
Key: 7 Rating: Really Easy
2. VS LBH XRRC GELVAT GB CEBIR ZHECUL'F YNJ, JVYY FBZRGUVAT TB JEBAT?
Key: 13 Rating: Really Easy

Now try decrypting these messages but without knowing the key. The best method is to try out each key from 1 - 25.

3. DEM JXQJ OEK ERLYEKIBO DEM XEM JE TUSHOFJ Q SQUIQH SYFXUH RO XQDT, KIU JXYI BYDA JE IFUUT JXYDWI KF: MMM.IUSHUJSETURHUQAUH.SEC/SQUIQH.XJCB.
Rating: Easy
4. HSJ TY L NZFYECJ HTES QCPPOZX ZQ DAPPNS LCP ESPCP ASZYP MTWWD?
Rating: Easy

Challenges:
These messages are not encrypted with just caesar cipher. To encrypt it I added a twist for each cipher. The primary cipher is a Caesar cipher but there is an added twist. One example is that I may have reversed the plaintext before encrypting it with a caesar cipher. Don't expect to get ANY of these.

5. H XAT CIVGPI XIJ STX HCIKTGNB JRW JHT IDPCNDC TVTGIGJ ST HI TXC.
Rating: Medium
6. VYRYMVK VIRDO NXK OXSBOMIVQYBDSX ,NSMK MSBEPVEC CK RMEC CNXEYZWYM CEYXYCSYZ NXK OFSCYVZHO ,MSDCEKM PY BOLWEX K XS NXEYP OBK YWRN PY CDXOXYZWYM MSWYDK ORD .CBODDSWCXKBDYBEOX VKMSDSBM BODVK IVVKMSWORM NXK ,COXKBLWOW VVOM DZEBCSN ,CXSODYBZ OBEDKXON ,KXN ODKDEW YD XGYRC COSMOZC K ,VKMSNKB VIHYBNIR OFSDMKOB IVRQSR ORD CS CSCKL CDS .NSMK MSBNIR IVZWSC BY ,ONSHYBNIR WESXYBNIR ,ONSHYBNIR XOQYBNIR ,ONSHY XOQYBNIRSN CK OWYC IL YD NOBBOPOB YCVK ,NXEYZWYM VKMSWORM CCOVBYNY NXK CCOVBYVYM K CS )YWRN( ONSHYXYW XOQYBNIRSN
Rating: Kinda Easy
7. IG XHKJZHZRKYE ROI LVYXNVXICR WICW HT NBUJXTFNFXQEK XUO?
Rating: Hard


Post a comment if you need a hint on any one of them.