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?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

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

I taste better than I can smell. Who am I?

What is the coolest letter in the alphabet?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?