Quick question on gameplay: say the system pops a message asking which tech to research next, I can't seem to click the map area to investigate how many turns my worker builds till completion before I decide what tech to research.
There's a setting in the options to "minimize pop-ups", I believe, which will give you the chance to give orders to idle units before the game bombards you with tech and city builds, if you prefer. That said you can freely switch what you're researching at any time, just go to the tech screen and click on the tech you want to research, or click on the research progress bar on the map screen and select a new tech from the options you have. If the tech choice pop-up shows up and you have to do something before the start of the turn to decide, just click on something, do whatever you need to do, and than change the tech you're researching to what you want to research. Just remember to actually change it, because the game will pick for you if you don't, and two half-finished techs don't do as much for you as one completed one.
I'm a little confused here. Do you mean to say that roading the Wheat will only provide Health benefits and nothing else, and that I should make sure I have Citizen actively working on this tile.
Putting a farm on the Wheat is what improves the wheat's tile yield, which is
extremely important as it turns a 2

tile into a 4

tile, or even a 5

tile if the Wheat was irrigated (this one won't be until you research Civil Service, but we'll get into the nitty-gritty of irrigation chains later). Food is
critical for every city, as food is what allows it to grow. You always want to be working your food tiles, since you always want your cities to be growing. Of course there's exceptions to that, but we'll get into those details when they come up. For right now, work your food.
Putting a road on the Wheat connects the Wheat resource to your trade network, which gives +1

to your city. However, look at the health bar in the city screen, next to the food bin: 8

to 6

. You really don't benefit from the +1

at all. Having the Wheat roaded will be important later, but only later. Right now tile improvements are more important, so you should focus on that first.
I lost you there. Do you mean to say that I could go Mysticism > Masonry? I'm playing Roosevelt, who is not charismatic.
If you're not CHA there's less reason to go Mysticism (through being IND does allow for other opportunities in it's own right), but it can still be an important tech for early border pops. As for why Mysticism before Masonry, every prerequisite of a tech that you own makes that tech cheaper to research. If you're going Masonry and Mysticism anyway it's more efficient to go Mysticism first, since it'll make Masonry cheaper.
Why? I don't understand the logic.
When you change civics (or state religion) and you're not SPI your empire goes into Anarchy for one or multiple turns, depending on a few factors, but this early on on Normal speed it'll always be one turn. While in anarchy no city produces anything, nothing grows, nothing gets done, it's basically a stagnant turn. The only thing you can do while in Anarchy is move units, so workers can build improvements and other units can move to do wherever. It's generally optimal to switch into Slavery after your first Settler is done, assuming you don't wish to whip said settler, because you don't lose anything while that settler is still on the map and moving to where it wants to settle. If you switch
after it puts down the city than the turn of Anarchy will stagnate that city's growth, production and commerce output for an entire turn as well as your capitol, which is obviously less than ideal.