Each member of a club contributes as much rupees and as much praise as the number of members of the club. If the total contribution is ₹2525, then the number of members of the club is:

If 6 @ 4 @ 7 = 101 and 2 @ 5 @ 11 = 150, then what is the value of A in A @ 8 @ 9 = 289?

Some equations are solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis.
5 × 4 × 3 = 70,
6 × 5 × 4 = 140
7 × 6 × 5 = ?

The sum of the ages of Arjun and his daughter is 48. The average of the ages of Arjun, his daughter and his son is 25. What is the age of Arjun’s son?

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_qr_srq_p_rs_r_p

If “S” denotes “multiplied by”, “V” denotes “subtracted from”, “M” denotes “added to” and “L” denotes “divided by”, then 8 V 10 M 96 L 6 S 9 = ?

Four forms of a dice are shown below. In this dice which word will be on the surface opposite to the world D?

The branch of study dealing with old age and aging is known as _.