If $16\%$ of $40\%$ of a number is $8$, the number is:

Ram, Shyam and Kamal together started a business in partnership. The ratio of their capitals is $3:4:7$. If their annual profit be $₹21,000$, what will be Kamal's share in this profit?

It costs $₹1$ to photocopy a sheet of paper. However, $2\%$ discount is allowed 'on all photocopies done after first $1000$ sheets'. How much will it cost to photocopy $5000$ sheets of paper?

Which of the following is used in pencils?
(A) Charcoal
(B) Silicon
(C) Phosphorus
(D) Graphite

The term 'Black Box' is more commonly used in relation to which of the following?
(A) It is a box in which high grade uranium is kept to prevent radiation.
(B) It is a time capsule in which records of important events are kept to be opened at a later date.
(C) It is a flight recorder in an aeroplane.
(D) None of the above.

How many spokes are there in the Dharma-Chakra of our National Flag?
(A) 20
(B) 22
(C) 24
(D) None of these