Bush's intelligence

He asks Kalam what his leadership philosophy is. He says that, it is
>to surround himself with intelligent people.
>
>Bush asks how he knows if they're intelligent.
>
>"I do so by asking them the right questions," says the Kalam. "Allow me
>to demonstrate."
>
>Bush watches as Kalam phones Manmohan Singh and says, "Mr. Prime
>Minister, please answer this question: your mother has a child, and
>your father has a child, and this child is not your brother or sister.
>Who is it?"
>
>Manmohan immediately responds, "It's me, Sir !"
>
>"Correct. Thank you and good-bye, sir," says the Kalam. He hangs up and
>says, "Did you get that, Mr. Bush?"
>
>Bush nods: "Yes Mr.President. Thanks a lot. I'll definitely be using
>that!" Bush, upon returning to Washington, decides he'd better put the
>Condoleeza Rice to the test.
>
>Bush summons her to the White House and says, "Condoleeza, I wonder if
>you can answer a question for me."
>
>"Why, of course, sir. What's on your mind?"
>
>Bush poses the question: "Uhh, your mother has a child, and your father
>has a child, and this child is not your brother
>or your sister. Who is it?"
>
>Rice was puzzled and finally asks, "Can I think about it and get back to
>you?" Bush agrees, and Rice leaves. Rice
>immediately calls a meeting of senior senators, and they puzzle over
>the question for several hours, but nobody can come up with an answer.
>Finally, in desperation, Rice calls Colin Powell and explains the
>problem.
>
>"Mr. Powell, your mother has a child, and your father has a child, and
>this child is not your brother or your sister. Who
>is it?"
>
>Powell answers immediately, "It's me, of course."
>
>Much relieved, Rice rushes back to the White House, finds George Bush,
>and exclaims, "I know the answer, sir! I know who it
>is! It's our Colin Powell!"
>
>And Bush replies in disgust, "Wrong, its Manmohan Singh!"