Different Sexual Positions - Health Inspiration

#1 Hello, 1. I like to work with people of/with different ages. 2.

I like to work with people of /from different cultures. 3. I like to work with people of/with/from different backgrounds. 4.

different sexual positions, I like to work with people of/with/from different occupations. I am confused about the prepositions in my 4 sentences. Are all these ... Honestly, there is very little different between the two other than one being used more in sexual language nowadays that it's really hard to separate moan from sex. But, in terms of one of pain, there is pretty much no dictionary difference, it's all gotta do with the sound of it.

different sexual positions, To me both are somewhere on the line between 'whine' and 'growl', a moan is closer to a whine and a groan is ... It was "They had to change TV channels on different days at different times". I read "in different days" could be correct too, I don't know. Thank you in advance for your help too. Which one of the following is correct in the following context? Why Islamabad and How it is different?

Why Islamabad and How is it different? P.S. Islamabad is the capital city of Pakistan. Thanks!