What is next number in the pattern below:

131 517 192 123 ?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?

Move four matchsticks to the below square to form three squares?

What's the best place to go shopping in the ocean?

When 99 is considered higher than 100?

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

I add 5 to 9 and get 2. The answer is correct, so what am I?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?