What has hands, but can’t clap?

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?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

There are forty elephants and they have forty-fore heads. How can this be possible?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

What is the next number in the series?

15 29 56 108 208 ?

Be active and find the killer in the picture Riddle below.

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?