Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

When can we add 2 to 11 and get 1 as the correct answer?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

Prove that the below maths equation is true.

8 + 8 = 91

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

I have no life, but I can die. What am I?

What two things can you never eat for breakfast?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

There are forty elephants and they have forty-fore heads. How can this be possible?