Our product and our sum always give the same answer. Who are we?

How many triangles can you find in this given picture?

What is full of holes but still holds water?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Mr Black, Mr Gray, and Mr White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr Black, who hits his shot 1/3 of the time, gets to shoot first. Mr Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr Black, where should you shoot first for the highest chance of survival?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

I got a bee but no honey.
got an eye but am still blind.
got a sea but no water.
got a tea but no coffee.
got a why but no answer.

What Am I?

Prove that the below maths equation is true.

8 + 8 = 91

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?