How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

John was piloting a plane behind a car but was never able to overtake it. Why?

In the image given, you can find several triangles. Can you count them all?

I always drive my customer away.

Who am I?

In the four images below, can you find the odd one out?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

_ _ _ IE _ _
_ _ _ IE _
_ _ IE _ _
_ _ IE _
_ _ _ _ IE

Like you see, some letters have gone missing from these words that contain the IE pair at some or the other place. The letters that will be used to fill the blanks are given below. Use them and form meaningful words. Can you do that?

A, C, D, F, H, K, L, M, N, N, O, R, R, S, S, S, T, T, Y and Y.