I am a $5$-digit number greater than $30,000$ and less than $40,000$, my first and last digits are the same. The sum of my thousands, hundreds and tens digits is $15$. My tens digit is $4$ times as great as my hundreds digit. What number am I?

Find the values of the letters in the following

$\begin{array}{ccc}& 4& A\\ +& 9& 8\\ 1& B& 3\end{array}$

   $3 1 Q$  
    $+1 Q 3$
    $\overline{5 1 2}$ 

The value of $Q$ in the above addition is _____.

If 21y5 is a multiple of 9, where y is a digit, what is the value of y?

Find the value of the letters in the following

$\begin{array}{cc}A& B\\ \times & 3\\ CA& B\end{array}$

Each digit must be represented by just one _____ in the puzzle. (Letter, word)

Find the value of A and B in $\begin{array}{cc}5& A\\ A& 5\\ B& 9\end{array}$ (Addition)

Fill in the empty spaces with appropriate numbers.

 $8\times x0$

$x=$_____

Find the value of the letters in the following

$12A+6ABA09$

If $A3+8B=150$, then the value of $\left(\mathit{A}\mathit{+}\mathit{B}\right)$ is

The first digit of a number cannot be _____ in the puzzle. Write the answer in words.

Each letter in the puzzle must stand for just _____ digit.

In a puzzle, answer must be _____. $($Unique/ Common/ Ordinary/ General$)$

Which of the following can be a product of two $3-$digit numbers, $\mathrm{AB}3$ and $\mathrm{EF}8$?