What always comes into a house through the keyhole?

What is wrong in the below Picture?

Whats the next number in the below number sequence pattern.

Which city is three-fifths chick two third cat and 50% goat?

Find out the missing number in the picture attached:

Find the next number in the sequence

1, 2, 6, 21, 88, __?

A detective visits his friend John just to discover that John's neighbour Dr Jacob was murdered. Dr Jacob, who is a mathematician wrote the murderer's name in a code word "Hcqtfz". There were five suspects
1. Ajit
2. Pankaj
3. Ganpat
4. Deenu
5. Hariya

The Detective was instantly able to find the murderer.
Can you?

Which five letter word can be added at the end of below word to form a
valid word?

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It belongs to you, but other people use it more than you do. What is it?

Can you decipher the two rows to find the hidden word?