I’m tall when I’m young, and I’m short when I’m old. What am I?

How many triangles can you count in the figure given?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

What has 13 hearts but no other organs?

How many times can you subtract the number 5 from 25?

What time is it when an elephant sits on a fence?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211