The Road to Olympia puzzle makes 4 climbers give up

In the obstacle course competition of the show Road to Olympia, contestant Thu Huong faced a difficult question with the following content: "An's birthday is a day in April. An's date of birth is the number whose square difference with itself is 306. Please tell me An's exact date and month of birth?".

After thinking, Thu Huong could not give an answer, the remaining 3 contestants were given the right to answer. However, none of the contestants could give an answer to this question.

The Road to Olympia puzzle left 4 'climbers' defeated.

Try this quiz and see how smart you are. If you figure it out in the shortest time, scroll down to the comments to record it and see how many people think the same as you.

Lam Hoang

Source: https://vtcnews.vn/cau-do-duong-len-dinh-olympia-khien-4-nha-leo-nui-phai-chao-thua-ar936977.html