Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Can you count the number of triangles in the given picture?

What work can one never finish?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

How is the moon similar to a dollar?

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?