$92^{2} - 12^{2} = 3535 + ?$

$2 \frac{3}{5} + 3 \frac{4}{9} + 4 \frac{3}{15} = ?$

$A$ fraction becomes $4$ when $1$ is added to both the numerator and denominator; and it becomes $7$ when $1$ is subtracted from both the numerator and denominator. The numerator of the given fraction is

$958 \times 21 \div 4 = ?$

Natu and Buchku each have a certain number of oranges. Natu says to Buchku,"If you give me $10$ of your oranges,$I$ will have twice the number of oranges left with you." Buchku replies,"If you give me $10$ of your oranges,$I$ will have the same number of oranges as left with you." What is the number of oranges with Natu and Buchku respectively?

In a division sum,the divisor $d$ is $10$ times the quotient $q$ and $5$ times the remainder $r$. If $r = 46$,the dividend will be: