Can you find out which number multiplied by itself will give the output as 12345678987654321?

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?

What work can one never finish?

What two things can you never eat for breakfast?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

What type of tree can I carry in my hand?

Which tank will fill first?

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?