What word begins and ends with an E, but has only one letter?

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?

Why are all black people so quick ?

What part of the chicken has the most feathers?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

How can a man go eight days without sleep?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?