In a certain code language, 'JAM' is written as '24' and 'GEL' is written as '24'. How will 'LAW' be written in that language?

The logic followed in the code is the sum of the positional values of the letters in the English alphabetical order ($A=1,B=2,\dots ,Z=26$).
* For 'JAM':

$$J=10$$

$$A=1$$

$$M=13$$

$$\text{Sum}=10+1+13=24$$

* For 'GEL':

$$G=7$$

$$E=5$$

$$L=12$$

$$\text{Sum}=7+5+12=24$$

Applying the same logic for 'LAW':

$$L=12$$

$$A=1$$

$$W=23$$

$$\text{Sum}=12+1+23=36$$

Therefore, 'LAW' will be written as 36.