What has no start, end, or centre?

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

What do you see in the given picture?

Akbar called Birbal and asked him to draw a line on the floor. He asked Birbal to make that line smaller without erasing it. Birbal smiled and did it before Akbar could blink his eyes.

How did he managed to do it?

Find the missing letter in the last circle logically in the given below picture.

What does this rebus puzzle means ?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

What goes up but never comes down?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.