What does an Island and the letter T have in common?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

How many triangles are there on the puzzle below?

O_er_t_o_

Complete the missing letters of the given word.

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

Two Twins Jack and Jill were standing back to back and suddenly they started running in opposite direction for 4 kilometres and then turn to left and run for another 3 kilometres.

what is the distance between the Baggio twins when they stop ?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

On a beautiful Sunday morning, You ordered a hot tea to your hotel room and suddenly you remember an important thing that needed to be done right now will take around 3 minutes to complete.
Like most people you like your tea to be hot while drinking so, when should you pour cream in the tea?
1. straight away
2. Just people, you drink the team
3. Its does not matter

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?