There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

What is at the end of a rainbow?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

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

People put me on the table and cut me but do not eat me. What am I?

Spot 5 differences in two Christmas tree below: