Find the wrong number in the following series: 7, 28, 63, 124, 215, 342, 511

Find the missing number in the given series 7, 26, 63, 124, 215, 342, ?

Find the wrong number in the following series : 135, 226, 353, 552, 739

Find the missing number in the following series. 2/3, 4/7, ?, 11/21, 16/31

The missing number (?) in the following series is : 3, 7, 15, 31, 63, ?

Find the next term in the following number series : 2, 7, 24, 77, 238, ……..