Caesar Cipher

1. Encrypt the word "hello": 2. Encrypt the phrase "open sesame": 3. Encrypt the sentence "the quick brown fox": 4. Encrypt the word "world": 5. Encrypt the text "good morning, sunshine": 6. Decrypt the text "yjcvq": 7. Decrypt the phrase "xfmd rfzxpj": 8. Decrypt the sentence "zqtm tqm omz tqzmz": 9. Decrypt the word "ruhuhw": 10. Decrypt the text "xliivi xliivw, xliivw!":