Refer to the following letter and symbol series and answer the question that follows. Counting is to be done from left to right only. (Left) W G £ E © £ I % R G V % H # © I £ @ I $ € Y (Right) How many such letters are there each of which is immediately preceded by a symbol and also immediately followed by a symbol?

Refer to the following series (counting from left to right): (Left) F 5 @ £ T 7 Y € V D © 3 € 6 % X 1 Z £ € G * (Right) If all the numbers are dropped from the series, which element will be the sixth from the left?

Refer to the following number and symbol series (counting from left to right): (Left) 9 1 @ $ 5 1 # 5 9 $ 1 & 4 + 7 = ! 5 & 4 ? (Right) How many such symbols are there, each of which is immediately preceded by a number and also immediately followed by another number?