Find the group that is different from the other three: UXVY, KNLO, PUSQ, ADBE
Find the group that is different from the other three: UXVY, KNLO, PUSQ, ADBE
In UXVY, KNLO and ADBE, the 1st and 3rd letters are consecutive in the alphabet, and the 2nd and 4th letters are also consecutive (e.g. U-V and X-Y in UXVY). In PUSQ, P and S are not consecutive, and U and Q are not consecutive, so PUSQ breaks the pattern and is the odd one out.
Re-check your working by substituting the answer back into the original question.