Blocks not mining in minecraft v 1.7.10?

Just redownloaded minecraft, v 1.7.10, started up the game and started to hit some trees only to find that once i mine the block it doesn't disappear for a minute. Sometimes it doesn't disappear at all, and i have to mine it again. Sometimes it disappears if i hit it once after "destroying" it.

what's up with this glitch? Is there a fix? Any help appreciated

Pc overheating on minimalistic games?

I have had this pc for 4 months and was perfect to begin with it even on just simple internet browsing or doing work would stay at around 30 degrees and playing games it would max out at around 50 degrees

all of a sudden even playing games such as minecraft or war thunder it shoots up to 60,70 degrees and then eventually automatically shuts down and i'm running my pc on powersaver fully now to minimalize the chance of it overheating

my processor is a amd FX 8320 and I'm using a standard heatsync, 2 fans and my case is a zalman z11

the heatsync at most times runs at around 3000rpm but when my processor hits 40 degrees it shoots up to 4000, 5000 rpm

is this a faulty processor? I really hope not because I did buy it off amazon and it didn't get warrantee but was still expensive for me

Some online multiplayer websites?

I'm looking for some online multiplayer websites where you can play games multiplayer with others and add games etc. And play in different computers just by logging in etc. I'm looking for gamees like minecraft, roblox, moshi monsters etc.

How to find a job as a teenage game tester? (I'm currently 16-years old)?

I can't really find any job opportunities, and since I personally have fun gaming. I thought it would be a good idea if I could test games. I don't really mind tedious tasks, but I tend to enjoy to analyze my gaming environment much more. I play on a MacBook Air or iPhone 5. I actually play games that involve the area around me such as League of Legends or Minecraft, which I could use the area around me to my advantage. I thought my experience in observations that might help in applying to the job. I'm not sure where to start though, and some sites seem to be scams so i avoid those. I'm just raising money for college and food since my parents are planning to cut off finical aid soon since I have new step-siblings coming in. Any official sites or ways I apply for this kind of job?

Minecraft Factions: Claiming Land

I've been trying to fully understand this for a while now, and I've found it so hard to find a proper answer. I recently started watching a few lets plays on YouTube of Factions, and I decided that I'd like to try it out. A couple of my friends gave me their kits and I'm really keen to make my base and start moving forward. The problem is, I do not understand what /f claim does. How does it automatically know what land to claim? Does it claim a default radius? Someone explain it to me before my brain explodes. In the gameplay, it looks asif it automatically knows which land to claim. I don't understand it… Anyway, let me know in detail if anyone would like to help! Don't give me the usual answer like, "It claims the land you're standing on" or "It claims the chunk". I'd like to know how much land it claims and where to claim it from and what you require to claim and WHAT IT DOES. If there are any external commands please let me know what those are also.

Minecraft co-op split screen not working?

My little sister is playing and we watched many videos and the person presses start and it always comes up for it to work but when we get on minecraft and they press start on the second controller nothing happens. Any ideas?

My mouse and keyboard have a problem?

I have a laptop, but i use a wirless external mouse and keyboard. When i play a game like minecraft, the controls mess up. When i use wsad, the mouse doesn't work, when i use the mouse, the wsad keys stop working, any help is appreciated!

Any good zombie survival LAN games out there?

Me and my little brother have been looking for good games to play together on LAN… We were thinking about looking up a zombie survival game, we already know about dayZ left4dead 1 and 2
and killing floor, we want something new a game thats hopefully not massive in file size (2 GB max)
and something that can be played on LAN anytime after its been installed without an internet connection, any help will be greatly appreciated!

PS: the reason for the small file size is because our PCs are kinda old (2011 graphics card XD ) and that we have an unfair download limit of 15 GB per month so please bear with us!