Enough: Sufficiency :: Excess:?

Find the missing Number.

In the given word ‘SPLENDOR ’, in which consonant changed into its previous letter and the vowel into its next letter (according to the alphabetical order) and then all letters are arranged in alphabetical order from left to right then which of the following letter is fifth from the left end?

30 : 130 :: ? : ? 

Study the diagram given below and answer each of the following questions.

How many persons who take tea and wine but not coffee ?

If ‘+’ means ‘-‘; ‘-‘ means ‘×’; ‘×’ means ‘÷’ and ‘÷’ means ‘+’, then
25×5÷30+8 – 2 =?

A, B, C, D, E , F, G and H are sitting around a circle facing the centre. B is the third to the right of A, who is third to the right of C. F is second to the right of E, Who is not the nearest neighbour of B. D is second to the left of H, Who is second to the left of G.What is the position of H with respect to F?

If 16 Δ 4= 64 and 216 @ 8=27 and what is the value of 8 Δ 5@ 4 =?