Do oak trees have leaves during winter?
Oak trees are deciduous. Deciduous trees lose their leaves during autumn, and they grow back during spring. Winter is between autumn and spring.
The answer is no.

Was Mercedes-Benz associated with the Nazis?
During the 1930s, Mercedes-Benz produced the 770 model. The 770 was popular with Nazis, and Adolf Hitler used them as his personal vehicle.
The answer is yes.

Does the texture of leaves remain the same independent of their coloring changing?
When leaves turn colors like red, yellow, or brown, they start being cut off from their main supply of nutrients and moisture. As leaves change colors, they become dry and brittle. Leaves tend to be supple and soft when they are green.
The answer is no.

Are fresh garlic cloves as easy to eat as roasted garlic cloves?
Allicin is the component of garlic that makes it 'spicy' feeling in the mouth. When garlic is cooked, the Allicin in it is removed.
The answer is no.