Write SQL query to solve given problem: Please list all the common questions in 2014's survey and 2016's survey.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.questiontext FROM Question AS T1 INNER JOIN Answer AS T2 ON T1.questionid = T2.QuestionID WHERE T2.SurveyID IN (2014, 2016) GROUP BY T1.questiontext