Solution:

Adam and Eve were the only people without navel. As they were not born out of a mother, they never had umbilical cords and thus never had navels.

Solution:

The mules is moving in circular path and hence outside legs travels more distance than inner legs.

Solution:

To do this, he must be pushing the cork inside the bottle and then taking out the coin.

Solution:

100

Series of number that do not contain albhabet 'T'

Solution:

Batsman hit six and gone retired hurt while the new batsman come to play and get runout for his wicket and the other batsman hit six and made both century and team win..

Solution:

Old password : altered

New Password : distinct

Solution:

Playing chess

Game needs two players so Brother-8 is playing chess with Brother-2

Solution:

The clerk said that every day the password is CHANGED. Changed is the password.

Solution:

A typical way will be to start thinking about summing up the distance that the bee will travel but that will be quite a tedious task. How about we offer you a much easy solution?

The tunnel is 200 miles long and the trains are running at as peed of 100 mph which means that they will collide exactly at the center of the tunnel and seeking their speed, they will collide after an hour.

Now consider the bee which is flying at a speed of 1000 mph and will keep flying till the train collides. As calculated, it will keep flying for an hour which means the distance that it will cover is 1000 miles.

Solution:

192

Explanation:
I started with the number 192.
Adding the reversed 291 to 192 gave me 483.
Similarly,
483 + 384 = 867
867 + 768 = 1635
1635 + 5361 = 6996

Solution:

Align the toothpicks to form TEN. Use one toothpick for each of the lines.