Which of the following orders are correct regarding stability?

Which of the following order is correct regarding stability (I) CH_3 - CH = C = CH-CH_3 (II) CH_3 - CH = CH -CH = CH_2 (III) CH_2 = CH - CH_2 - CH =CH_2

Which of the following is correct regarding stability of the following pair of species ?

Which of the following order is correct for thermal stability?

Which of the following order is correct for thermal stability?

Which of the following orders is correct for the stability of these carbocations?

Which of the following order is correct regarding size of the voids.

Which of the following order is correct regarding dipole moment ?