Earth's Rotation Day is commemorated on which date every

Select the option in which the numbers are related in the same way as are the numbers in the given set.

(15, 48, 98)

Select the option in which the numbers share the same relationship as that shared by the numbers in the set given below:

(480, 238, 484)

Select the related number from the given alternatives:

10 : ? :: 9 : 730

Select the option that is related to the third word in the same way as the second word is related to the first word.

Paper : Book :: Leather : ?

Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.

If the 7^th day of a month is 3 days earlier than Friday, then what day will be on the 19^th day of the month?

If 47 @ 18 = 18' and 28 @ 44 = 8', then 54 @ 27 = ?'. What will come in place of question mark?

Canberra : Australia :: Ottawa : ?

Statement: Should the government revoke the GST and bring in the previous tax regime?