List of top Arithmetic and Mental Ability Questions on Number System asked in TS LAWCET

What comes next in the following series? A, G, L, P, S, ?

Select the missing number from the given responses: 121, 144, 289, 324, 529, 576, ?

Read the given pattern carefully and tell which number will come in place of question mark (?):

If 841=3, 633=5 and 425=7 then 217=?