A train travelling at a constant speed crosses a pole in 12 seconds whereas cross a tunnel 198 metre long in 30 seconds. Find the length of train.

A is inversely proportional to square of B whereas directly proportional to C. Value of A was 27 when value of B was 4 and value of C was 6. Find the value of A when value of B will be 3 and value of C will be 8.

In the following question, select the missing number from the given series.
2, 5, 12, 27, ?

If the following figure, AC||BD, ∠CAF = 25^o, ∠DBG = 65^o and BF = BA, then ∠BFE is equal to -

If KINGS is coded as RFMHJ, then how will you code QUEEN? 

In the following question, select the odd letters from the given alternatives.

101 : 10201 : : 107 : ?

If ‘+’ means ‘×’, ‘-’ means ‘÷’, ‘×’ means ‘+’ and ‘÷’ means ‘-’ then what is the value of a given equation?
225 ÷ 5 + 96 – 3 × 31