Given a travel related situation, and given a specific question about the situation, summarize the question into a title

A few days ago I wanted to buy Pegasus airline tickets because it was offering a 50% reduction on normal fares. I wanted a few tickets but couldn't even buy a single one. I tried different places with different networks but none worked. I even called my sister in New York to buy tickets for me and the result was again ineffective.

This is not the first time I encountered this problem. I have faced similar issues with other budget airlines as well (Ryanair, AirAsia). All the time during the sale, the website page was unresponsive. Well I do understand it all happens because of airline biggest sale promotion. I have bought promotion tickets "buy 1 get 1" and "Up to 25% off" before, but never been able to buy anything from the biggest sales.

Is there any possibility or hack to buy an airline ticket in one of these sales?

How to buy low cost airline tickets while airlines are offering big reductions

Arrival cards, Immigration cards, Custom declaration cards at airports often have a field that asks for home address/country of residence, etc...

What if a backpacker no longer maintains a residence and therefore has no home address (and has no family that has a home address either)? How should a backpacker fill out that field? Should he leave it blank? Can he write a non-residential mailing address instead? Do immigration/custom officers even care about that field?

How should a backpacker fill out home address field in immigration/custom cards

Emma Morano, who recently passed away at the ripe old age of 117 after becoming the oldest woman in the world, apparently ate a daily lunch of pasta with raw minced meat:

The Economist | Emma Morano: Ancient as the hills

Is this an actual Italian dish, and if so, what is it called and are there restaurants that serve it to the public? Googling in English was unhelpful.
Eating pasta with raw minced meat in Italy