Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

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?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

Before Mount Everest was discovered, what was the highest mountain in the world?

Which number comes next in the number series?

2, 9, 30, 93, ?