Redstone repeaters start on what looks like 4 ticks and with each click decrease towards 1 tick. But the delay values act the opposite way, when they look like 4 ticks they are 1 tick and when they look like 1 they are actually 4.
TNT also shifts when it falls. It doesn't fall straight down.
Please put only one bug report in each ticket. It is very difficult to keep track of bugs when they are not in their own tickets, and it is easier for you to make multiple tickets than for the mods to separate them.
And please use the search function in the future as all of the issues are reported multiple times.