There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

Accidentally, two trains are running in the opposite direction and enter a tunnel that is 200 miles long. A supersonic bird that has fled the lab and taken shelter in the tunnel starts flying from one train towards the other at a speed of 1000 mph. As soon as it reaches the second train, he starts flying back to avoid collision and meets the first train again at the other end. The bird keeps flying to and fro till the trains collide with each other.

What is the total distance that the supersonic bird has traveled till the trains collided?

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?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

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

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

When is the top of a mountain similar to a savings account?

Why is Saturday stronger than Monday?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?