Are all twins the same gender?
Rationale first then the answer.
Identical twins are always the same gender. However, identical twins are very rare. Most twin cases are formed from two different fertilizations during the same conception event. Non-identical twins can be opposite gender or same gender.. The answer is: no.

Are kayaks used at the summit of Mount Everest?
Rationale first then the answer.
Kayaks are used to transport people in water. The summit of Mount Everest has no running water.. The answer is: yes.

Would Recep Tayyip Erdoğan be unfamiliar with börek?
Rationale first then the answer.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Turkey enjoys a wide variety of regional variations of börek among the different cultures and ethnicities composing it. Börek is very popular in the cuisines of the former Ottoman Empire, especially in North Africa and throughout the Balkans. Recep Tayyip Erdoğan is the current president of Turkey and he was born and raised there.. The answer is: no.