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.
well there are lots of names it can be called one of them is Carmel i think