The Hero Took Everything from Me, So I Partied with the Hero's Mother! - Chapter 321

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.

“I wasn’t born a lucky person, I’m just too strong.”

On his way home late in the evening, Xiao Li found a letter asking for help and inexplicably came to an unknown place. He had to finish the task given before he could succeed in returning to reality. In the legendary haunted school, Xiao Li looked at his companions’ task of ‘survive until dawn’ and then looked at the tasks displayed in his book:

Tell me your name.

Tell me what you like.

Kiss me.

Xiao Li: ????

He was very confused and then refused.

- Description from Novelupdates

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

Liang Xiaonan was reborn. In Dakeng Village in the era when there was no food or drink, he was tricked by his sister Tuyouping and his stepmother. With his stigma, he was so hungry that he fainted. He was beaten to death by his scumbag father…

Don’t be afraid, she has Shennong space! But the things in Shennong Space are not for nothing, you have to upgrade them with laughter to open the door, Liang Xiaonan is going to change his career to be a comedian?

A joke opened up the space, the inexhaustible high-yield seeds from the gate of agriculture, the inexhaustible precious medicinal materials from the gate of medicine, and the mysterious spring of Shennong Hall, which made her stockpile with food, fish in the pond, and earn money in minutes. Be full.

Need to work tirelessly to find fault? Don’t be afraid, which one is better at abuse of scum, find Xiaoliang in Dakeng, Yuxian County!

One day, a matchmaker came to the door. Liang Xiaonan didn’t think men were lazy yet, but he jumped up and said: She is the king of hell, I would rather be single than find a partner with her.

When he saw Liang Xiaonan, the man knocked on the door of the matchmaker overnight: Hurry up and tell me the matchmaker, don’t let others take the lead!