Which alphabet letter is a question?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

What can go through glass without breaking it?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

who is silent in the parliament?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?