Which of the following numbers will replace the question mark (?) in the given series?
 10, 20 , 23, ?, 97, 582

Which letter-cluster will replace the question mark (?) to complete the given series?

DAJ, GEL, JIN, MMP, ?

Which letter-cluster will replace the question mark (?) to complete the given series?

QML, PRC, OWT, NBK, ?

Which letter-cluster will replace the question mark (?) to complete the given series?

RMTS, WGAK, BAHC, GUOU, ?

Which letter-cluster will replace the question mark (?) to complete the given series?

TMT, ZOB, FQJ, LSR, ?

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

BLJS, FOLT, ?, NUPV, RXRW

Identify the number that does NOT belong to the following series. 

49, 98, 196, 394, 784, 1568

Which of the following numbers will replace the question mark (?) in the given series?
 4, 6, 12, 14, 28, 30, ?