दी गई श्रृंखला में अगली संख्या ज्ञात कीजिए। 4, 3, 7, 20, 81, ?

What should come in place of the question mark (?) in the given series? 98, 100, 103, 108, 115, ?

Find the missing number in the given series: 4, 8, 8, 0, 6, 9, 11, 7, 7, 3, ?

What should come in place of the question mark (?) in the following series? 2, 3, 7, 8, 26, 27, 111, 112, ?