Find the missing term in the series: 1, 1, 2, 3, 5, ?, 21.

B. 13

If the word 'FISH' is coded as '9-18-19-8', what is the code for 'HAT'?

A. 8-1-20

Which letter comes next in the series: Z, Y, X, W, ?

A. V

What is the 7th letter of the English alphabet?

A. G

Identify the missing letter in the series: a, e, i, o, ?

A. U