How many pairs of letters are there in the word

Statements:

All blacks are white.

Only a few whites are red.

No red is yellow.

Conclusions:

What is the code for “Every pupil should participate”?

Odd one out

If A is related to RBI GRADE A and B is related to SBI PO in a certain way. Then, C is related to which of the following?

If it was Sunday on 1st April, 1956, then what was the day of the week on 2nd July, 1957?

Identify the number, which when added to itself 14 times gives 540.

Select the number from among the given options that can replace the question mark(?) in the following series.

523, 498, 475, 454, 435, ?

Select the option in which the given figure is embedded (rotation is NOT allowed).

Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.