A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Two old friends, Jack and Jill, meet after a long time, and discussing as:

Jack: Hey, how are you, man?

Bill: Not bad, got married and I have three kids now.

Jack: That's awesome. How old are they?

Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.

Jack: Cool..But I still don't know.

Bill: My eldest kid just started taking piano lessons.

Jack: Oh, now I get it.

How old are Bill's kids?

Find the hidden tiger in the given optical illusion ?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What do you think with the below Picture ?