How can you write nineteen in a manner that if we take out one, it becomes twenty?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

Why is 6 afraid of 7?

How many Watermelons are there in the below picture?

Solve this riddle by finding the odd one out from the rest.

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

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

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What occurs twice in a week, once in a year but never in a day?

There is something which is always coming but never arrives?