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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?

When can we add 2 to 11 and get 1 as the correct answer?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

Which English verb becomes past tense just by rearranging the letters?

What part of the chicken has the most feathers?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

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)

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Find the next number in the series.
1 10 24 43 67 ?