If

$$16\% \text{ of } 40\% \text{ of a number} = 8$$

, the number is :

1.If a person earned Tk. 25, Taka 30, and Taka 35 in the first three weeks of the month, how much he must earn in the fourth week in order to make average weekly earnings to Taka 35 in the month?

2.A vendor bought chocolate at 6 for a taka. How many for a taka must he sell to gain 20%?

3.A man deposits Tk. 600.00 in a Bank at 10% interest rate compounded annually. What will be the total amount including interest at the \end{of}the second year?

4.Three workers can do a job in 12 days. Two of the workers work twice as fast as the third. How long would it take one of the fastest workers to do the job alone?

5.How Many sectors were there in the Liberation War of Bangladesh?

6.Which thana is situated to the North-East corner of Bangladesh?

7.Where does the Meghna meet with Brahmaputra?

8.What is the meaning of the 'Tajin $Dong^{\prime}$?

9.How many Government EPZ exist in Bangladesh?

10.When is the 'Jahangirnagar University $Day^{\prime}$ observed?

11.Who is the architect of “Mishuk”?

12.Which are the first currency notes of Bangladesh?