Temp Code

Replace a text from a string in mySQL table 

update tbl_Questions set question=replace(question,' 2021-2022','') where

Cookie

HttpCookie myCookie = new HttpCookie("MyTestCookie");
DateTime now = DateTime.Now;

// Set the cookie value.
myCookie.Value = now.ToString();
// Set the cookie expiration date.
myCookie.Expires = now.AddMinutes(1);

// Add the cookie.
Response.Cookies.Add(myCookie);

Which suits your needs more likely.