Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

Take away the whole and some still remain. What is it?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

What word is pronounced the same if you take away four of its five letters?

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?

Can you count the number of squares in the figure below?

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?