SQL - Interval Function on a column

I am trying to add date to a second from a column and update a new column. This sql is executing fine "select trunc(sysdate-364)+ interval '10' second from dual;" but the interval variable is dynamic and I am trying to specify a column in it say like this "select trunc(sysdate-364)+ interval 'column_name' second from table_name;" and the sql fails let me know how do I specify a column in the interval function. Thanks.