Which of the following statements is not correct?

If $\log_{10}{2}=0.3010,then \log_{2}{10}$ is equal to :

If log 2 = 0.30103, the number of digits in $2^{64} $is:

If $\log_{10}{2}=0.3010,then \log_{10}{80}$ is equal to :

If $\log_x(\frac{9}{16})=-\frac{1}{2}$,then x is equal to :

$\dfrac{\log\sqrt{8}}{log 8}$ is equal to

If $\log{x}{y}=100\: and \: \log{2}{x}=10$,then the value of y is

If $log 2 = 0.3010 \:and \:log 3 = 0.4771,\: the\: value \:of \:\log_{5}{512} $is:

If log 27 = 1.431, then the value of log 9 is:

If $a^{x}=b^{y}$,then