The question is very vague, and not possible to give one correct answer - there are literally thousands of white and yellow flowers.
An easy answer is... a DAISY, as the flowers are both white and yellow
It is a yellow wild flower with a brown center. They are also called black eyed susans.
Cowslip
Daffodil
Yes it is a wild flower found growing in Java. It is called the corpse flower because it smells like rotting meat.
The Indian flower is called a lotus. A pink Flower with a yellow dot inside.
mareting
One kind of yellow
Because they're big and yellow and they lean in the direction of the sun.
marigold
It is called the Prairie Crocus. :D
Any of the seven native species known to exist on the Hawaiian Islands that are called Hawaiian hibiscus.
Yellow