Number Series & Coding Mock Tests

Find the missing number in the series: 3, 9, 27, 81, ?

What is the next number in the series: 3, 7, 15, 31, 63, ?

2, 6, 12, 20, 30, ? What comes next?

In a certain code language, if "COMPUTER" is written as "DPNQVUFS", how will "MOUSE" be written?

In a certain code language, "COMPUTER" is written as "DPNQVUFS". How is "NETWORK" written in that code?

In a certain code language, "TEACHER" is written as "VGCEJGT". How is "STUDENT" written in that code?

What is the next number in the series: 2, 6, 12, 20, 30, ?

What comes next in the series: 2, 6, 12, 20, 30, ?