If Rajina's daughter is my daughter's mom, who am I to Rajina?

A man dies of old age on his 25 birthday. How is this possible?

Jessica is telling her friends this story and asks them to guess if it’s the truth or a lie: “There was a man sitting in a house at night that had no lights on at all. There was no lamp, no candle, and no other source of light. Yet, he sat in the house and read his book happily.” Her friends say she’s lying, but Jessica corrects them and says she’s telling the truth. Jessica’s story is true—but how?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Before Mount Everest was discovered, what was the highest mountain in the world?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

I taste better than I can smell. Who am I?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30