Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

What can go up a chimney down, but can’t go down a chimney up?

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?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?