who is silent in the parliament?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

A man dies of old age on his 25 birthday. How is this possible?

Find the missing number in the sequence below:

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Three cars are driving on a track that forms a perfect circle and is wide enough that multiple cars can pass anytime. The car that is leading in the race right now is driving at 55 MPH and the car that is trailing at the last is going at 45 MPH. The car that is in the middle is somewhere between these two speeds.
Right now, you can assume that there is a distance of x miles between the leading car and the middle car and x miles between the middle car and the last car and also, x is not equal to 0 or 1.
The cars maintain their speed till the leading car catches up with the last car and then every car stops. In this scenario, do you think of any point when the distance between any two pairs will again be x miles i.e. the pairs will be x distance apart at the same time ?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.