Find out the wrong term from the given series.
$10, 26, 74, 218, 654, 1946, 5834$

Study the following arrangement carefully and answer the question.
$O, 4, E, J, 5, T, 1, A, M, Q, 3, 8, N, I, K, 7, W, F, 6, S, 9, U, 2, Y, X$
Which of the following is the sixth to the left of the eleventh from the left end of the above arrangement?

Choose the correct alternative to complete the series: $...bcdbc...dcabd....bcdbc....dc....bd$

Fill in the blank space for the given series with the correct alternative.
Which of the following will not be a number of the series $1, 8, 27, 64, 125, \ldots$?

Find the missing term for the given series from the given alternatives.
$G, H, J, M, (?), V$

The positions of how many digits in the number $7,3,5,4,6,1,2$ will remain unchanged after the digits within the number are rearranged in descending order from left to right?