I can write cow in 13 letters.

Can You?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Find the hidden tiger in the given optical illusion ?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

What do you call a fish without an eye?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

What can you hold in your right hand, but never in your left hand?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.