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?

Find the Goldfish below the given Image.

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

What happened when the wheel was invented?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

If six children and two dogs were under an umbrella, how come none of them got wet?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly