If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

What has one letter and starts with an E?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

A landlord calls both of his sons and tells them that their horses will now decide who will transfer the inheritance. He tells them to race along the land till the end and the one whose horse will be slower will win and be the heir to all the property.

Both of them keep wandering for days but to no result. Then they ask a wise man regarding it. The man advises them on the matter after which they jump on the horses and race as fast as they can till the end. Why did they do it?

What did the wise man say?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

What begins with T, ends with T, and has T in it?