10 most difficult tra­di­tions riddles

The 'avenue of heroes' at Baikonur in Kazakhstan, where the shuttle will launch, provides a poignant memorial to each mission conducted over the past 50 years. The tradition started with Yuri Gagarin, the first human to enter space, when he planted a single tree before blasting off further from Earth than anyone had ever been. Every Russian cosmonaut, and then later astronauts from other countries, that has left the bounds of Earth from the Cosmodrome has first planted a tree on the path to the launchpad.

"Women and children first" is a code of conduct dating from 1852, whereby the lives of women and children were to be saved first in a life-threatening situation. HMS Birkenhead was wrecked on 26 February 1852, while transporting troops to Algoa Bay at Danger Point. There were not enough serviceable lifeboats for all the passengers, and the soldiers famously stood firm on board, thereby allowing the women and children to board the boats safely and escape the sinking.Only 193 of the estimated 643 people on board survived; including all women and children

Pollada is a traditional food from Peru, and makes up one of the most well-known plates in Peruvian cuisine. It is a special food because it is prepared in exchange of receiving a profit to help a particular need. ... In Peru, pollada is made with music, dancing, and is bought by the famous pollada cards. It is believed that the first form of preparation of pollada was in the economic inflation periods of Peru, which forced Peruvians to live with overpriced foods.

In the years of splendor in Venice there was a law that allowed only one building to wear the name of the palace - it was the Doge's Palace, the residence of the rulers of Venice. The rich Venetian families lived according to this law in the so-called houses (Casa abbreviated Ca). Currently, most residences of Venetian patricians carry the word "palace" in their name, although there are exceptions and some Venetian monuments are still called according to old traditions, eg Ca'Rezzonico or Ca 'd'Oro. Over 100 survived to modern times.

The Book of Caverns is an important Ancient Egyptian netherworld book of the New Kingdom. Like all other netherworld books, it is also attested on the inside of kings’ tombs for the benefit of the deceased. It describes the journey of the sun god Ra through the six caverns of the underworld, focusing on the interaction between the sun god and the inhabitants of the netherworld, including rewards for the righteous and punishments for the enemies of the worldly order, those who fail their judgment in the afterlife.

Nambudiri Brahmin families practised a more strict version of primogeniture than Brahmin communities elsewhere in India. Under this custom, only the eldest son could marry a Nambudiri woman and thus produce an heir to the family property. Younger sons were restricted to sambandam relationships with non-Brahmin women, whom the Nambudiris considered to be concubines and whose offspring could not inherit.

Wise Men from the East appear in the Gospel of Saint Matthew. The Gospel does not give them numbers or names. However, it was customary to determine their number to 3: Casper, Melchior and Balthasar.

Karni Mata Temple s also known as the Temple of Rats. The temple is famous for the approximately 25,000 black rats that live, and are revered, in the temple. In the temple, there are a few white rats, which are considered to be especially holy. They are believed to be the manifestations of Karni Mata herself. Sighting them is a special blessing and visitors put in extensive efforts to bring them forth, offering prasad, a sweet holy food.

Chol HaMoed a Hebrew phrase meaning "weekdays of the festival" refers to the intermediate days of Passover and Sukkot. Chol HaMoed combines features of weekday (Chol) and festival (Moed). On weekdays during Chol HaMoed, there are variant customs regarding whether tefillin should be worn, reflecting the dual nature of the day.

Kyoto is the heart of Japan's geisha world. In Kyoto, however, fully-fledged geisha are properly called geiko (pronounced “gay-ko”). Young ladies, usually between the ages of 15 and 20, train for five years to become a geiko. During this period, they are known as maiko (pronounced “my-ko”).