Why do we preferably have round manhole covers and not square ones?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

A man dies of old age on his 25 birthday. How is this possible?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

I am quite hot but become too cold if you remove the first two letters. What am I?

I am sometimes honest
Sometimes dishonest
I can be sweet and also bitter
I can hurt you real bad and
also make u smile and blush ☺️
What am I?

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

There is something which is always coming but never arrives?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"