You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Find the next number in the sequence

5 12 24 36 ?

What is the coolest letter in the alphabet?

I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

What does does this rebus picture means ?

When monkey rotate the gear, which mark will be hit 1 or 2 ?