How many days will there be from $26^{th}$ January,$1988$ to $15^{th}$ May,$1988$ (both days included)?

Hemang is $16^{th}$ from the top and $12^{th}$ from the bottom in merit in the class. How many students are there in the class?

If the position of the first and the sixth digits of the sequence of numbers $8, 9, 0, 3, 2, 1, 4, 6, 7, 5$ are interchanged,the second and the seventh and so on,which number would be seventh from the right end?

Which two months in a year have the same calendar?

In a class of $60$ students, where girls are twice the number of boys, Kamal ranked $17^{th}$ from the top. If there are $9$ girls ahead of Kamal, how many boys are after him in rank?

In a row of boys,Deepak is seventh from the left and Madhu is twelfth from the right. If they interchange their positions,Deepak becomes twenty-second from the left. How many boys are there in the row?