What building has the most stories?

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

Which wheel of car does not rotate when you turn your car right?

If your uncle’s sister is not your aunt, what relation is she to you?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

What does this mathematical rebus means ?

Can you count the number of squares in the given picture?

What's the only room from which no one can enter or leave