Choose the correct alternative to complete the series: $....tu....rt....s.....; .....usrtu.....$

Choose the correct alternative for the missing terms in the series: $A, Z, X, B, V, T, C, R, ?, ?$

Which number would replace the question mark in the series $2, 7, 14, 23, ?, 47$?

Choose the correct alternative to complete the series: $ab . . aa . . bbb . . . aaa . . bbaa$

Choose the correct alternative for the missing term in the series: $cx, fu, ir, ?, ol, ri$.

How many such pairs of digits are there in the number $7326985$ each of which has as many digits between them in the given number as when the digits of the number are rearranged in ascending order within the number?