What has no start, end, or centre?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Find The Odd One Out

1. FLOW
2. SNIP
3. TRAP
4. DRAW
5. BACK

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

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Considering the below equation:

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

Then, I + II + III = ?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

An apple seller is hosting a competition. He offers 1000 apples and 10 boxes to the people who pass by. The challenge is to put those 1000 apples in the 10 boxes in such a manner that if he asks for any amount of apples, the person can directly give him the boxes or a combination of boxes. If the person can do it, he promises to give a thousand apples for free.

If you happen to pass by the apple seller, will you be able to win a thousand apples?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

How many triangles can you count in the figure given?