Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

How many times can you subtract the number two from the number fifty?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

How many triangles can you count in the figure given?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?