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

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

Whats the next number in the below number sequence pattern.

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Who are the happiest people in IPL match?

What Does this text mean:

important=important

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

Can you tell a 3D object that has just two surfaces?

In the image below, can you find the value of an angle(y)