0.5,0.55, 0.65,0. 8,….

Select the missing number from given responses.

Complete the series choosing the missing letter

__ aaba __ aa__ __aa

2, 3, 5, 6 ,? , 9, ?, 12

In the following question, select the number which can be placed at the sign of (?) from the given alternatives.

Find the missing number?

563, 647, 479, 815, (…)

Select the option that represents the letters that, when placed from left to right in the following blanks, will complete the letter series.
S C R _ W S _ R _ W _ C _ G W S _ R H _