Find the missing letter in the sequence M, N, O, ?, Q, R.

A. P

If A=1, B=2, C=3, and so on, what is the code for the word 'CAT'?

A. 312

In the series A, B, C, D, E, F, G, H, I, J, how many letters are there before the letter E?

A. 4

If the letter Z is the 26th letter, what is the position of letter M in the alphabet?

A. 12

Count the occurrences of the letter 'A' in the series: A, B, A, C, A, D, E, A.

A. 4