Which is the smallest number that you can write using all the vowels exactly once?

Can you complete the sequence?

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

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

In an Art Gallary, When the clock hit 11 am, Artist hung the painting number 30. When it struck 4 pm, he hung painting number 240 and when it struck 7:30 pm, he hung painting number 315.

Can you determine, which painting number will he hang when the time is 9:20 pm?

Why is a river so rich ?

I look at you, you look at me I raise my right, you raise your left. What am I?

Can you identify the famous TV character from the rebus below?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?