Find the next number in the series below

21 32 54 87 131 ?

What is next number in the pattern below:

131 517 192 123 ?

What has hands, but can’t clap?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

How many times do a clock's hands overlap in a day ?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?