$1523.89 \div 19.95 + 496.28 + 249.927 = ?$

Two numbers differ by $5$. If their product is $336$,then the sum of the two numbers is

$A$ number when divided by $361$ gives a remainder $47$. If the same number is divided by $19$,the remainder obtained is

The product of two numbers is $120$. The sum of their squares is $289$. The sum of the two numbers is

$A$ number when divided by the sum of $555$ and $445$ gives two times their difference as quotient and $30$ as the remainder. The number is

The sum of three numbers is $2$. The $1^{\text{st}}$ number is $\frac{1}{2}$ times the $2^{\text{nd}}$ number and the $3^{\text{rd}}$ number is $\frac{1}{4}$ times the $2^{\text{nd}}$ number. The $2^{\text{nd}}$ number is