Can you see the...

Select a figure from amongst the options which will continue the same series as establised by the problem figure.

Find the missing number, if a certain rule is followed in all the three figures.

Fill in the blanks.
11, 23, ________, 53, 71

Find the missing number :

The missing number is

$$\overline{a}\neq 0, \overline{b}\neq 0, \overline{c}\neq 0, \overline{a}\times \overline{b}=0, \overline{b}\times \overline{c}=0 \Rightarrow \overline{a}\times \overline{c}$$

Solve :

If B+K=T, S+L=R, J+N=P,AND T+P=O, then B+N+J+K=?

$$25%$$ of a number is less than $$650$$ by $$19$$ then the nuber is 

Find ?