I travel all around the world but always stay in the corner. What am I?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

What came first, the chicken or the egg?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

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

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?