Draw a logic circuit diagram showing how a NAND gate can be converted to NOT gate.

Identify the logic gates marked $X$ and $Y$ in the fig. given below. Write down the output at Z when $A=1$ and $B=0$.

The output of a 2-input AND gate is fed to a NOT gate. Write its truth table.

Convert the decimal number $23$ to its binary equivalent.

Convert the decimal number $27$ to its binary equivalent.

Convert the binary number ${\left(10011001\right)}_2$ to its decimal equivalent.

Find the binary equivalent of ${\left(363\right)}_{10}$.

Find the binary addition of ${\left(101010\right)}_2$ and ${\left(010101\right)}_2$.

Find the binary subtraction of ${\left(101010\right)}_2$ and ${\left(010101\right)}_2$.