$1601 \times 198 \div 49 - 1399 + 3878 = ?$

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

$6 - \left[ \frac{5}{6} + \left\{ 3 \frac{7}{8} - 2 \frac{1}{3} + 1 \frac{7}{9} \right\} \right] = ?$

$65 \%$ of $240 + ? \%$ of $150 = 210$

On dividing a number by $5$,we get $3$ as the remainder. What will be the remainder when the square of this number is divided by $5$?

$A$ two-digit number is such that the product of its digits is $8$. When $18$ is added to the number,the digits are reversed. The number is: