Find the missing letter in the last circle logically in the given below picture.

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Why is the Hole below a Lock?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?