Semantic translation rocks!!! Direct translation is hard for Turkish. Because, English and Turkish are based on different language families. and ways of thinking.

Yes this is why English and Turkish people often have problems. 

Turkish has words and ideas that cannot be interchanged and where in English these turkish words can.

But in Turkish the opposite is true there are words/verbs and ideas that you do not understand if we interchange the Turkish words. The same as we would in English because the individual words can be interchanged in English but in Turkish the turkish words gave a nonsense idea. 

For 12 

I meant complete the joke. you complete the joke with your own idea. I forgot to include the word "complete" and add the SEN suffix as appropriate to match vowel harmony. 

1. Yarın geleceğim, yemek yiyeceğiz. Öğleden sonra birlikte yeriz. (din ilk gelse is totally wrong)
2. I will come tomorrow and we will eat food. We will eat together afternoon.
3. Dün yaptığım deney başarısız oldu. Labaratuvar gitti. Şimdi ne olacak!!!
4. The experiment I tried yesterday was not successful. The laboratory has gone... Now!!!
5. Dün geçmişte kaldı. Bugün, yeni bir gün başladı. İngiliz parlamentosu, gelecek ay Brexit hakkında konuşmaya devam edecek.
6. Tomorrow has gone. Today is a new day. English parliament will continue to argue about Brexit next month.
7. Yeni dilleri tecrübe etmeyi severim ama bu yabancı dillerle pek aram yok.
8. I like experimenting new languages, but they do not like me.
9. I think this sentence is not clear. You should specify it. For example, you can say like this "I like learning foreign languages, but it is hard to learn them".
10. Adam neden kendini köprüden attı? Bu bir şaka mı?
11. Why did he throw himself off a bridge? Is this a joke!
12. This is also not clear. Did you mean "A complete joke" or something else?