What is the missing number in the series: 2, 4, 8, 16, ?, 64?

A. 32

If 'TABLE' is coded as 'UBMDF', what is the code for 'CHAIR'?

A. DIBJS

Find the missing number in the series: 5, 10, 20, 40, ?

C. 80

If '?' represents addition, '?' represents subtraction, '?' represents multiplication, and '?' represents division, what is the result of 8 ? 4 ? 2 ? 3 ? 2?

C. 12

In a coding system, 'FLOOR' is coded as 'GMPPS'. If 'DOOR' is coded as 'EPPQ', what is the code for 'WINDOW'?

C. XJQZOW