*Question*
This is a correct answer to the following question about Ice-cream headache. Yes or no? Answer: It is caused by having something cold touch the roof of the mouth ( palate ), and is believed to result from a nerve response causing rapid constriction and swelling of blood vessels or a " referring " of pain from the roof of the mouth to the head. Question: What Causes Brain Freeze
**Answer**
Yes

*Question*
This is a correct answer to the following question about Virtual machine. Yes or no? Answer: A virtual machine (VM) is a software implemented abstraction of the underlying hardware , which is presented to the application layer of the system. Question: what is a vm server
**Answer**
Yes

*Question*
This is a correct answer to the following question about Erwin Rommel. Yes or no? Answer: Rommel is regarded as having been a humane and professional officer. Question: where did the british defeat of Rommel
**Answer**
No

*Question*
This is a correct answer to the following question about Effective nuclear charge. Yes or no? Answer: The term "effective" is used because the shielding effect of negatively charged electrons prevents higher orbital electrons from experiencing the full nuclear charge by the repelling effect of inner-layer electrons. Question: What does the idea of effective nuclear charge tell us
**Answer**
Yes