$\frac{3}{11} \text{ of } \frac{5}{7} \text{ of } (?) = 63$

$18.5 \%$ of $220 + 12.4 \%$ of $680 = ?$

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?

$499.99 + 1999 \div 39.99 \times 50.01 = ?$

On dividing a number by $56$,we get $29$ as remainder. On dividing the same number by $8$,what will be the remainder?

$1 \frac{5}{6} + 2 \frac{3}{5} + 4 \frac{2}{3} = ?$