Can you write down eight eights so that they add up to one thousand?

In the image given, you can find several triangles. Can you count them all?

What does below chemistry rebus means?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

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

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?