Shift ciphers

These Caesar-like ciphers are obtained by shifting the alphabet by a fixed amount (Julius Caesar shifted by 3). They are produced by simple-minded code wheels. If you are faced with a shift cipher, you can decipher it by looking at the 26 possible shifts, and choosing the one that makes sense. Try it on the cipher text below. Notice that each column is the alphabet, in order, starting at the cipher letter in that column. What is the message?

Try it on these three cipher texts:

ymnx nx ymj ktwjxy uwnrjafq
esp bflwtej zq xpcnj td yze decltypo
owlzwhwghdwgxlzwmfalwvklslwk