The value of a 100-year-old cup can vary greatly depending on factors such as its condition, rarity, and historical significance. Without more specific information about the cup, it is difficult to provide an accurate estimate of its value. However, if the cup is a rare or significant piece from a well-known maker or historical period, it could potentially be worth a significant amount to the right collector or museum. It would be best to consult with an antique appraiser or expert in vintage ceramics to get a more accurate assessment of its value. **

The sustainability of the World Cup in Qatar has been a topic of concern due to the environmental impact of hosting such a large-scale event in a desert country with limited water resources. However, Qatar has made efforts to address these concerns by implementing sustainable practices in the construction of stadiums and infrastructure, as well as investing in renewable energy and water conservation technologies. Additionally, the legacy of the World Cup in Qatar includes plans to repurpose and reuse the stadiums after the event, as well as initiatives to promote social and economic development in the region. While there are still challenges to overcome, Qatar's commitment to sustainability in hosting the World Cup is a positive step towards minimizing its environmental footprint. **

It is generally not recommended to pour 100 degrees hot water into a porcelain cup, as the sudden change in temperature can cause the cup to crack or break. Porcelain is a delicate material and is not designed to withstand extreme temperature changes. It is best to use warm or room temperature water when using a porcelain cup to avoid damaging it. **

Germany's performance in the 2018 World Cup was disappointing as they were eliminated in the group stage, finishing last in their group. This was the first time since 1938 that Germany failed to advance past the group stage in a World Cup. The team struggled to find their form and suffered defeats to Mexico and South Korea, leading to their early exit from the tournament. **

I'm sorry, but I cannot provide real-time information or updates on specific events or performances, as my knowledge is based on information available up to September 2021. I recommend checking the latest news or sports updates for information on Musiala's performance in the World Cup. **

It is subjective to determine who has delivered the better performance in the World Cup as it depends on individual opinions and perspectives. Some may argue that a particular team or player has delivered a better performance based on their statistics, goals scored, or overall gameplay. Others may have a different perspective based on their own criteria for evaluating performance. Ultimately, the better performance is a matter of personal interpretation and can vary from person to person. **

While 100% cotton is often associated with good quality, it is not always a definitive indicator. The quality of cotton can vary depending on factors such as the type of cotton used, the weave of the fabric, and the manufacturing process. Other factors like thread count, fabric finish, and construction also play a role in determining the overall quality of a cotton product. It is important to consider these additional factors when assessing the quality of a cotton item. **

Germany's performance at the World Cup was disappointing, as they were unable to advance past the group stage for the first time in their history. They struggled to find their form and were unable to capitalize on their opportunities. It was surprising to see such a strong team struggle, but it also shows the competitiveness of the tournament and the high level of play from other teams. Overall, it was a disappointing performance for Germany. **