Which of the following numbers will replace the question mark (?) in the given series?

189, 532, 316, ?, 377

In a row of people all facing north, Prince is 5th from the right end. Amit is 15th from the right end. Amit is exactly between Prince and Aditya. If Aditya is sixth from the left end of the line, how many people are there in the row?

Which of the following numbers will replace the question mark (?) in the given series?

26, 54, 110, 222, ?,  894

Which of the following numbers will replace the question mark (?) in the given series?

48, 75, 108, ?, 192

Which of the following numbers will replace the question mark (?) in the given series?

1, 22, 44, 67, 91, ?

Which of the following numbers will replace the question mark (?) in the given series?

242, 288, ?, 392, 450

Which of the following numbers will replace the question mark (?) in the given series?

345, 356, 368, 381, 395, ?

Which of the following numbers will replace the question mark (?) in the given series?

12, 25, 51, 103, ?, 415, 831