What Adam and Eve do not have but the rest of the people have?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

Sachin bought a car with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number. All the digits of car number are distinct.

What is the original number on number plate?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

How many Watermelons are there in the below picture?

What jumps when it walks and sits when it stands?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

No matter how little or how much you use me, you change me every month. What am I?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

A man was gazing through the window of the 23rd floor of the building. He suddenly opened the window and jumped on the other side of the window. On landing on the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface?